Chemistry - Study Mode

[#406] Number of neutrons in an atom of hydrogen is
Correct Answer

(B) Zero

Explanation

Solution: Number of neutrons in an atom of hydrogen is zero.

[#407] The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon ?
Correct Answer

(A) 6

Explanation

Solution: The atomic number of carbon is 6 and its atomic mass is 12 then there is 6 protons in the nucleus.

[#408] An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is
Correct Answer

(B) 19

Explanation

Solution: An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is 19.

[#409] Atoms of same element having different mass numbers are called________
Correct Answer

(B) Isotopes

Explanation

Solution: Atoms of same element having different mass numbers are called isotopes.

[#410] How many neutrons does iron have?
Correct Answer

(D) 30

Explanation

Solution: Iron has 30 neutrons.