Question

The electronic configuration of elements X and Y is 2, 8, 8, 2 and 2, 6

respectively. Using this information, answer the following: [4]

(i) ________ is a metallic element and ________ is a non-metallic

element.

(ii) X will form ions by _______ of electrons and Y will form ion by

_______ of electrons.

(iii) Identify X and Y.​

Answer 1

Answer:

x is a metal with ec 12 and y is a non metal with ec 17

Answer 2

Answer:

First of all X= 2,8,8,6 = 20 atomic number

means it is calcium

Y = 2,6 =8 atomic number

means it is oxygen

calcium is metallic element and oxygen is non metallic element

calcium will form ions by 18 electrons

oxygen will form ions by 6 electrons

Explanation:

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