Question

Q14. The atom of an element X contains 17 protons, 17 electrons and 18 neutrons
whereas the atom of an element Y contains 11 protons, 11 electrons, 12 neutrons.
a. What type of ion will be formed by an atom of element X? Write the symbol of
ion
formed
b. What will be the number of protons, electrons and neutrons in the ion formed
from X?
c. What type of ion will be formed by an atom of element Y? Write the symbol of
ion formed.
d. What will be the number of protons, electrons and neutrons in the ion formed
from Y?
e. What is the atomic mass of X and Y?
f. What could elements X and Y be?​

Answer 1

Answer:

1. An charge of the anion or negatively charged ion will be formed by the x element .because there are 18 neutron and 17 protons present in the atom of its element . The symbol of the x element is the x negative and x∧- .
2. The ion formed by x :-

a.  Protons = 17

b.  Electrons = 17

c.  Neutrons = 18

   3.    An charge of cation or positively charged ion will be formed by the atom of y element  , because there are 11 neutrons and has 12 neutrons .

  4 .The ion formed by y :-

a.  protons = 11

b. electrons = 10

c.  Neutrons = 12

  5.  Atomic mass of x = 35u

      Atomic mass of y = 23u

  6.  X could be the chlorine

     y could be the sodium .

Explanation:

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Answer 2

Answer:

Element X consists of 17 protons and electrons and 18 neutrons. Element X will readily accept an electron to form a negatively charged anion.

The symbol of the negatively charged X is X∠’.

(b) In the ion formed by X:

(i) Number of protons = 17

(ii) Number of electrons = 18

(iii) Number of neutrons = 18

(c) Element Y consists of 11 protons and electrons and 12 neutrons. Element Y will readily lose an electron to form a positively charged cation.

The symbol of the positively charged Y is Y+.

(d) In the ion formed by Y:

(i) Number of protons = 11

(ii) Number of electrons = 10

(iii) Number of neutrons = 12

(e) (i) Atomic mass of X = number of protons of X + number of neutrons of X

= 17 + 18

= 35 u

(ii) Atomic mass of Y = number of protons of Y + number of neutrons of Y =

11 + 12

= 23 u

(f) Atomic number of X is 17; therefore, element X is chlorine.

The atomic number of Y is 11; therefore, element Y is sodium.