Question

Calculate the atomic number and mass number of the elements X and Y from the following:
a) X- ion containing 18 electrons and 18 neutrons.
b) Y3+ ion containing 10 electrons and 14 neutrons.
Name the element X and Y.
Plzz.... answer this question correctly...

Answer 1

Explanation:

1. Argon contains 18 electrons and 18 neutrons.
2. Aluminium ³+ contains 10 e and 14 n

Answer 2

Answer:

a) X is Cl atom

Atomic No. = 17

Mass No. = 17 + 18 = 35

b) Y is Al atom

Atomic No. = 13

Mass No. = 13 + 14 = 27

hope this helps

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