The following table shows the position of six elements

Asked by admin @ 17/08/2021 in Science viewed by 263 People

The following table shows the position of six elements A, B, C, D, E and F in the periodic table. Groups 1 2 3 to 12 13 14 15 16 17 18 Periods 2 A B C 3 D E F

Using the above table answer the following questions:
1. Which element will form only covalent compounds?
2. Which element is a metal with valency 2?
3. Which element is a non-metal with valency 3?
4. Out of D and E, which one has a bigger atomic radius and why?
5. Write a common name for the family of elements C and F.

Answered by admin @ 17/08/2021

Element E will from only covalent compounds,

Element D will have valency 2 which is metal,

Element B is a non metal having valency 3,

and Element D has larger radius because as move right of the periodic table,

atomic radius decreases.

Electrons come closer to the nucleus due to opposite charges of electron and nucleus.

The elements C and F are called as Halogens.

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