Question

Complete the following sentence: 'Different isotopes of the same element have...'
A) ...the same number of protons, but differing numbers of neutrons and electrons
B) ...the same number of neutrons, but differing numbers of protons and electrons
C) ...the same number of protons and neutrons, but differing numbers of electrons
D)...the same number of protons and electrons, but differing numbers of neutrons

Answer 1

Answer:

D) The same number of protons and electrons but differing number of neutrons .

Explanation:

• Isotopes have same atomic number but different mass number. Thus , option D
• eg : hydrogen , protium and tritium all have atomic numbers 1 but have mass numbers as 1,2,3 respectively.

HOPE IT HELPS YOU!

Answer 2

Answer:

option D

Explanation:

istopes have same atomic number but different mass number

number of protons = number of electrons = Atomic number (Z)

number of neutrons = Atomic number (Z) - Atomic mass

As isotopes have different atomic mass or mass number but same atomic number

hence we can find different number of neutrons

therefore option D is correct same number of protons and electrons, but different number of neutrons