Question

mass number of an ion with unit negative charges is 37.Number of neutrons present in the ion is 10.6percent more than that of electrons. identify the ion​

Answer 1

Answer:

The symbol of the ion is Fe3+

Explanation:

We are given:

Atomic mass of the element = 56

Let us assume that the number of electrons in the given element is 'x'

So, number of neutrons = 30.4 % more than the electrons

Number of neutrons =  x+0.304x=1.304x

It is also given, that number of electrons in neutral atom = x + 3

In a neutral atom, number of electrons is always equal to number of protons

Number of protons = x + 3

Atomic mass is the sum of number of protons and number of neutrons present in an atom.

According to question:

(x+3)+(1.304x)=56

x=23

Number of protons = (23 + 3) = 26

So, the element having atomic number as 26 is Iron having symbol ' Fe' and this element carries a charge of +3 units.

Hence, the symbol of the ion is Fe3+

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