The number of neutrons in an atom of nitrogen-14 (atomic number 7) is:
Atomic Structure and Chemical Bonding
Original Khojo Papers practice question — not from a past board paper.
The proton has a charge of +1 and a relative mass of 1; the neutron has no charge and a relative mass of 1; the electron has a charge of −1 and a mass about 1/1836 of that of a proton.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Protons and neutrons are in the nucleus and electrons move round it in shells.
From the same topic and chapter, at a similar level.
The number of neutrons in an atom of nitrogen-14 (atomic number 7) is:
Atomic Structure and Chemical Bonding
What is the octet rule, and which family of elements already obeys it?
Atomic Structure and Chemical Bonding
An atom has an atomic number of 17 and a mass number of 35. Write its electronic configuration and state the number of neutrons.
Atomic Structure and Chemical Bonding
What are isotopes? Give one example and state why they have the same chemical properties.
Atomic Structure and Chemical Bonding
Explain the formation of a molecule of sodium chloride, naming the type of bond formed.
Atomic Structure and Chemical Bonding
An element has two isotopes of mass numbers 35 and 37 present in the ratio 3 : 1. Calculate its average atomic mass.
Atomic Structure and Chemical Bonding