# data[].attributes.body
A compound consisting of three elements; may be ionic or covalent.

# data[].attributes.body
chemical compound that conducts electricity by changing into ions when melted or dissolved into a solution.

# data[].attributes.body
a positively charged particle consisting of two protons and two neutrons, emitted in radioactive decay or nuclear fission; the nucleus of a helium atom.

# data[].attributes.body
The alkali metals are a group (column) in the periodic table consisting of the chemical elements lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).

# data[].attributes.body
The alkaline earth metals are six chemical elements in group 2 of the periodic table. They are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).

# data[].attributes.body
A substance made by melting two or more elements together, at least one of them a metal.

# data[].attributes.body
A negatively charged ion, i.e., one that would be attracted to the anode in electrolysis.

# data[].attributes.body
The atomic mass of an atom is the mass of an atom of a chemical element expressed in atomic mass units.

# data[].attributes.body
the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.

# data[].attributes.body
The atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding cloud of electrons.

# data[].attributes.body
the number 6.022 × 10²³ indicating the number of atoms or molecules in a mole of any substance.

# data[].attributes.body
A fast-moving electron emitted by radioactive decay of substances. (The emission of beta particles was originally regarded as a ray.).

# data[].attributes.body
a positively charged ion, i.e., one that would be attracted to the cathode in electrolysis.

# data[].attributes.body
A chemical bond is the force that holds two atoms together.

# data[].attributes.body
A Group 11 element is one in the series of elements in group 11 (IUPAC style) in the periodic table, consisting of transition metals which are the traditional coinage metals of copper (Cu), silver (Ag), and gold (Au).

# data[].attributes.body
The control variable (or scientific constant) in scientific experimentation is the experimental element which is constant and unchanged throughout the course of the investigation.

# data[].attributes.body
a variable (often denoted by y ) whose value depends on that of another.

# data[].attributes.body
a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.

# data[].attributes.body
Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. The Pauling scale is the most commonly used. Fluorine (the most electronegative element) is assigned a value of 4.0, and values range down to cesium and francium which are the least electronegative at 0.7.

# data[].attributes.body
Fission is the splitting of heavy nuclei (such as uranium) – in two smaller nuclei. This process needs less energy to 'bind' them together – so energy is released. Fission happens quite easily – and is used to generate electricity in conventional nuclear power stations.

# data[].attributes.body
Combining lighter atomic nuclei to form a heavier nucleus. Energy is released. The opposite of fission

# data[].attributes.body
penetrating electromagnetic radiation of a kind arising from the radioactive decay of atomic nuclei.

# data[].attributes.body
In chemistry, a group (also known as a family) is a column of elements in the periodic table of the chemical elements. There are 18 numbered groups in the periodic table, and the f-block columns (between groups 3 and 4) are not numbered.

# data[].attributes.body
The time in which half the atoms in a radioactive isotope decay.

# data[].attributes.body
any of the elements fluorine, chlorine, bromine, iodine, and astatine, occupying group VIIA (17) of the periodic table. They are reactive nonmetallic elements that form strongly acidic compounds with hydrogen, from which simple salts can be made.

# data[].attributes.body
A compound, typically a crystalline one, in which water molecules are chemically bound to another compound or an element.

# data[].attributes.body
a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.

# data[].attributes.body
An independent variable is defines as the variable that is changed or controlled in a scientific experiment. Independent variables are the variables that the experimenter changes to test their dependent variable. A change in the independent variable directly causes a change in the dependent variable.

# data[].attributes.body
An ion is an atom or group of atoms in which the number of electron s is different from the number of proton s. If the number of electrons is less than the number of protons, the particle is a positive ion, also called a cation.

# data[].attributes.body
A chemical bond formed between two ions with opposite charges.

# data[].attributes.body
An ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding.

# data[].attributes.body
The ionic radius is the measure of an atom's ion in a crystal lattice. It is half the distance between two ions that are barely touching each other. Since the boundary of the electron shell of an atom is somewhat fuzzy, the ions are often treated as though they were solid spheres fixed in a lattice.

# data[].attributes.body
The ionization energy (IE) is qualitatively defined as the amount of energy required to remove the most loosely bound electron, the valence electron, of an isolated gaseous atom to form a cation.

# data[].attributes.body
The series of fifteen metallic elements from lanthanum to lutetium in the periodic table.

# data[].attributes.body
The main group is the group of elements whose lightest members are represented by helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, and neon as arranged in the periodic table.

# data[].attributes.body
The total number of protons and neutrons in a nucleus.

# data[].attributes.body
Any chemical element that is an effective conductor of electricity and heat can be defined as a metal. A metal is also good at forming bonds and cations with non-metals. Atoms inside of a metal quickly lose electrons in order to make positive ions or cations.

# data[].attributes.body
The chemical bonding that holds the atoms of a metal together.

# data[].attributes.body
an element whose properties are intermediate between those of metals and solid nonmetals. They are electrical semiconductors.

# data[].attributes.body
Standard Molar Volume is the volume occupied by one mole of any gas at STP. Remember that "STP" is Standard Temperature and Pressure. Standard temperature is 0 ° C or 273 K. Standard pressure is 1 atmosphere or 760 mm Hg (also called "torr"). 1 mole of any gas at STP occupies 22.4 liters of volume.

# data[].attributes.body
The molar mass M is a physical property defined as the mass of a given substance (chemical element or chemical compound) divided by the amount of substance. The base SI unit for molar mass is kg/mol. However, for historical reasons,molar masses are almost always expressed in g/mol.

# data[].attributes.body
It is defined as the amount of a chemical substance that contains as many elementary entities, e.g., atoms, molecules, ions, electrons, or photons, as there are atoms in 12 grams of carbon-12 (12C), the isotope of carbon with relative atomic mass 12 by definition.

# data[].attributes.body
The neutron is a subatomic particle, symbol n or n0 , with no net electric charge and a mass slightly larger than that of a proton. Protons and neutrons constitute the nuclei of atoms.

# data[].attributes.body
Any of the gaseous elements helium, neon, argon, krypton, xenon, and radon, occupying Group 0 (18) of the periodic table.

# data[].attributes.body
a chemical element that lacks the characteristics of a metal and that is able to form anions, acidic oxides, acids, and stable compounds with hydrogen.

# data[].attributes.body
Radioactive decay is the process by which an unstable atomic nucleus loses energy by emitting radiation, such as an alpha particle, beta particle, or gamma ray.

# data[].attributes.body
The nucleus is the center core of an atom that has a positive charge and that contains most of the atom's mass.

# data[].attributes.body
A period is the name given to a horizontal row of the periodic table.

# data[].attributes.body
A table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure appear in vertical columns.

# data[].attributes.body
A charged chemical species (ion) composed of two or more atoms

# data[].attributes.body
A subatomic particle found in the nucleus of every atom. The particle has a positive electrical charge, equal and opposite to that of the electron.

# data[].attributes.body
A part of chemistry that deals with figuring out the elements or ingredients of which a compound or mixture is made.

# data[].attributes.body
The determination of the absolute or relative abundance of one, several or all particular substance(s) present in a sample.

# data[].attributes.body
The shielding effect describes the attraction between an electron and the nucleus in any atom with more than one electron shell.

# data[].attributes.body
A well-established explanation for scientific data.

# data[].attributes.body
Any of the set of metallic elements occupying a central block in the periodic table.

# data[].attributes.body
A formula giving the number of atoms of each of the elements present in one molecule of a specific compound.

# data[].attributes.body
The symmetrical three-dimensional arrangement of atoms inside a crystal.

# data[].attributes.body
A measure of the energy contained in the crystal lattice of a compound, equal to the energy that would be released if the component ions were brought together from infinity.

# data[].attributes.body
It is the lowest whole number ratio of ions represented in an ionic compound.

# data[].attributes.body
An ion consisting of a single atom.

# data[].attributes.body
An anion containing one or more oxygen atoms bonded to another element (as in the sulfate and carbonate ions).

# data[].attributes.body
In metallic bonds, the valence electrons from the s and p orbitals of the interacting metal atoms delocalize. That is to say, instead of orbiting their respective metal atoms, they form a “sea” of electrons that surrounds the positively charged atomic nuclei of the interacting metal ions.

# data[].attributes.body
Electrons in a molecule, ion or solid metal that are not associated with a single atom or a covalent bond.

# data[].attributes.body
Composed of two chemical elements

# data[].attributes.body
A formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms.

# data[].attributes.body
The percentage by mass of each element in a compound.