Question

The structure of an atom is shown.

7p
8n
Which element is the atom an isotope of?
nitrogen
.oxygen
.phosphorus
.titanium

Answer 1

Nitrogen

Step-by-step explanation:

Since in a isotope, the number of protons(atomic number) remains constant,i.e.,for all isotopes of an element atomic number remains the same,as given number of protons = 7,following parameters hold:

• Nitrogen has 7 protons,so we're talking about isotope of nitrogen.
• As given,no. of neutrons: 8 so this isotope has 1 extra neutron than usual(Actual no. of neutrons in an atom of nitrogen = 7,so its mass number is more than usual)
• Hence by above we can deduct that the element is nitrogen