Advertisements
Advertisements
Question
Calculate the number of neutrons, protons and electrons:
- atomic number 3 and mass number 7
- atomic number 92 and mass number 238.
Advertisements
Solution
- Number of neutrons – 4
Number of protons – 3
Number of electrons – 3 - Number of neutrons – 146
Number of protons – 92
Number of electrons – 92
APPEARS IN
RELATED QUESTIONS
Name the three sub-atomic particles of an atom.
Compare the properties of electrons, protons and neutrons.
The mass of an electron is about `1/2000` times that of proton.
Which subatomic particle is not present in an ordinary hydrogen atom?
Sulphur has an atomic number of 16 and a mass number of 32. State the number of protons and neutrons present in the nucleus of sulphur.
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.
The number of neutrons present in 73Li is ______.
On the basis of Rutherford’s model of an atom, which subatomic particle is present in the nucleus of an atom?
The hydrogen atom does not have ______.
The ratio of neutrons in C and Si with respective atomic masses 12 and 28 is ______.
