Question

the position of three elements a,b and c in the periodic table is shown bellow give reasons explain the following
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Answer 1

Answer:

here is your answer ....

Explanation:

(a) A is a non - metal because it can gain electrons easily. It has 7 valances electrons and form negative ions to become stable.

(b) The atomic number of B is less than C, it has less nuclear charge, less force of attraction between protons in the nucleus and valance electrons. Hence, it's size is bigger than C.

(c) Element C has 7 valance electrons, it can gain 1 electron to become stable so its valenvy is 1.

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