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a material made of long

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When a solid has a reaction with acid.

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a solid that is generally shiny and malleable and a good

conductor of heat and electricity.

-Tooba

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a circular path around the nucleus associated with

different electrons.

-Talha

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a horizontal row of elements on the periodic table.

-Tooba

# data[].attributes.body
elements that posses both metallic and nonmetallic

properties

-Tooba

# data[].attributes.body
a solid , insoluble materials that

forms in a liquid solution.

Azfaar

# data[].attributes.body
an internationally recognized system used to

identify chemical substances.

-Talha

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a solid that is generally shiny and malleable and a

good conducter of heat and electricicty

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the ability of an element to combine

with other elements.

Azfaar

# data[].attributes.body
the protons,neutrons, and electrons that make up

atoms.

-Talha

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a concept used in models that

represent the force that hold the

atom together

Azfaar

# data[].attributes.body
When a chemical has the ability to react with  to react to oxygen

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splitting apart of unstable nuclei to produce

radioactive particles.

-Talha

# data[].attributes.body
The behaviour of a substance when it becomes a new substance.

# data[].attributes.body
a drawing to explain molecules in

which atoms are represented by

chemical symbol and bonds are shown as

straight lines connecting the symbols.

Azfaar

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Density is the amount of matter per unit volume.

# data[].attributes.body
reactive nonmetals that occur in different states

and occupy the seventeenth column of the periodic table.

-Tooba

# data[].attributes.body
The measure of how fast a liquid can flow.

# data[].attributes.body
an abbreviation for the name of an

element.

Azfaar

# data[].attributes.body
is any of two or more forms of an element,

each having the same number of protons

but having a different mass due to a different

number of neutrons.

-Talha

# data[].attributes.body
Thye ability of a substance to dissolve in solvent.

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inert gasses, found on the far right column of

the periodic table, that almost never form chemical

compounds with other elements.

-Tooba

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the combination of two or more atoms.

Azfaar

# data[].attributes.body
Crystals are solid forms of many minerals in a structure of cubes and other patterns.

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The temperature of when a solid, liquid or gas changes its state.

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When a solid can be pulled into wires or strings.

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Negatively charged particles with a

relative mass of approximately 1/2000

of the mass of a proton or neutron, travelling in regions

of space around the nucleus. -Talha

# data[].attributes.body
a substance that contain two different

pure substance or types of particles.

# data[].attributes.body
When a metal can be hammered or bent into different shapes.

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are neutral particles with a relative mass of 1,

also located in the nucleus.

-Talha

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elements that occupy the far left column (first

group of the periodic table).

-Tooba

# data[].attributes.body
the set of elements that appears in the same

column in the periodic table.

-Tooba

# data[].attributes.body
a change in the state or form of a

substance that does not change

the original substance.

Azfaar

# data[].attributes.body
the average distance from the nucleus to their outer

edge of a spherical atom.

-Tooba

# data[].attributes.body
Characteristics or description of a substance

that would help identify.

# data[].attributes.body
a substance that contains only

one kind of particle.

Azfaar

# data[].attributes.body
are positively charged particles with a relative mass of 1,

located in the nucleus.

-Talha

# data[].attributes.body
If the elements are arranged according to their

atomic number, a pattern can be seen in which similar

properties occur regularly.

-Tooba

# data[].attributes.body
the chemical reaction that occurs

when a substance reacts rapidly

with oxygen and releases energy.

Azfaar

# data[].attributes.body
A theory proposed by John Dalton

in 1808 to explain why elements differ from each

other and from non-elements.

-Talha

# data[].attributes.body
if the elements are arranged according to their

atomic mass, a pattern can be seen in which similar

properties occur regularly.

-Tooba

# data[].attributes.body
a particle is an element ; from the

Greek word atomas,

meaning '' invisible''

Azfaar

# data[].attributes.body
average mass of an atom of an element.

Azfaar

# data[].attributes.body
the average mass of an atom of an element.

-Tooba

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an organized arrangement of elements that explains

and predicts physical and chemical properties.

-Tooba