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beryllium (Be),
magnesium (Mg),
calcium (Ca),
strontium (Sr)
and barium (Ba).

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Some characteristics are:

1 They have two electrons in their valence shell, allowing them to form ionic compounds.
2 They are relatively soft and easily cuttable metals.
3They have high melting and boiling points.
4They are reactive with water and air, forming hydrides and oxides.
5They are good conductors of heat and electricity.

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Lithium - Li
Sodium - Na
Potassium - K
Ribidium - Rb
Cesium - Cs
Francium - Fr

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1-. This is a soft, shiny, metallic group of metals.
2-. They react easily with water since they have a low melting points and densities.
3-. They are great electricity conductors.
4-. They all have one valence electron that they lose easily to form ions.
5-. They have a high thermal & electrical conductivity, luster, ductility & malleability.
6-. They are the least electronegative elements in the periodic table & the most reactive metals.

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PNICTOGENS

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Halogens are strong oxidants and react mainly with alkali metals (family I A) that have the tendency to give up an electron.

They also react with noble metals and gases (VIII A family). Along with noble gases, halogens are made up of nonmetals. All elements of this group form diatomic molecules, for example F2, Cl2, Br2, I2.

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Nitrogen (N)
Phosphorus (P)
Arsenic (As)
Antimony (Su)
Bismuth (Bi)

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1 They have five electrons in their last shell, so they are capable of receiving three electrons to complete their octet rule and achieve stability.

2 Nitrogen and phosphorus are capable of forming highly varied chemical compounds with metals and non-metals.

3 Nitrogen is a chemical element with the symbol N. It is a colorless and odorless gas that is very important due to its ability to bind to other substances and at the same time act as inert matter.

4 Phosphorus is a chemical element with symbol P. It is a solid that can have different colors depending on its allotropic forms.

5 Arsenic is a chemical element with the symbol As. It is a highly toxic metalloid for humans and is found as deposits in groundwater.

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oxygen 0
azufre S
selenio SE
telurio TE
polonio PO

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carbon (C)
silicon (Si)
germanium (Ge)
tin (Sn)
lead (Pb)
flerovium (Fl)

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Under normal conditions, oxygen is a colorless,

It condenses into a light blue liquid.

oxygen is part of a small group of slightly paramagnetic.

it is the most paramagnetic of this group.

Liquid oxygen is also slightly paramagnetic.

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Elements
Helium-He
Neon- Ne
Argon-Ar
Krypton-Kr
Xenon-Xe
Radon-Rn

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Borun-B
Aluminium-Al
Gallium-Ga
Indium-In
Thalium-Tl
Nihonium-Nh

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- Similar properties due to similar outer  4 electronic configuration.

- Element density increases moving down the group

- They have a strong preference for oxygen

- It consists of one nonmetal (carbon), two metals (tin and lead) , and two metalloids (silicon and germanium).

- The melting point is high it varies from 1414°C to 3700° C

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The noble gasses are those found on the far right of the periodic table in group VIIIA. these are colorless, odorless, tastless and non-flammable gasses under normal conditions and which also have a very low chemical reactivity due to the fact that their last electron shell is complete.

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-Odorness
-Colorless
-Nonflamable
-Low chemical reactivity
-Tasteless
-Low melting and boiling points
-Known as intert gasses

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-Conductors of heat and electricy
-it has an unusually high melting point
-silver apperance
-soft metals
-there are soft in nature and have low melting points

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fluorine (f) chlorine (cl) bromine (br) iodine astatine, and possibly tennessine.

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fluorine (f) chlorine (cl) bromine (br) iodine astatine, and possibly tennessine.