Question

The following table shows the positions of
Six elements A, B, C, D, E, F, IN THE PERIODIC TABLE
Using the table answer the questions
a) Which element will form only covalent compounds
b) Which element is a non-metal with valency 2
c) The hydroxide of which element is most basic.
d) Which element is most electronegative.
e) Out of D, E and F which element is used for making electrical wires.

Answer 1

Answer:

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.

Answer 2

Answer:

Explanation:Element A is carbon..only it forms covalent bonds

ElementB is a oxygen

Element C is a N(oH)3.It is a most basic hydroxide

Element D is a flourine. Because it is a most electro negative element.

And Element E is a aluminium......