Advertisements
Advertisements
Question
Fill in the blank of the following statement :
If the nucleus of an atom has atomic number 17, mass number 37 and there are 17 electrons outside the nucleus, the number of neutrons in it is __________.
Advertisements
Solution
If the nucleus of an atom has atomic number 17, mass number 37 and there are 17 electrons outside the nucleus, the number of neutrons in it is 20.
APPEARS IN
RELATED QUESTIONS
Helium atom has an atomic mass of 4 u and two protons in its nucleus. How many neutrons does it have?
Compare the properties of electrons, protons and neutrons.
What is a neutron? State its relative mass and charge.
Name the element which does not contain any neutrons in its nucleus.
Explain in brief the experimental proof which led to the discovery of –
Neutrons
State the number of neutrons in each of the atoms A to E. Also state which of the atoms A to E is a metal.
Calculate the number of neutrons, protons and electrons:
- atomic number 3 and mass number 7
- atomic number 92 and mass number 238.
Identify the Mg2+ ion from the Fig. where, n and p represent the number of neutrons and protons respectively
Calculate the number of neutrons present in the nucleus of an element X which is represented as `""_15^31"X"`
Which subatomic particles have no charge?
