Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
Number of neutrons = A – Z
= Mass number – Atomic number
A. Number of neutrons =1 – 1 = 0
B. Number of neutrons = 16 – 8 = 8
C. Number of neutrons = 14 – 7 = 7
D. Number of neutrons = 23 – 11 = 12 (2, 8, 1 metal)
E. Number of neutrons = 35 – 17 = 18
APPEARS IN
संबंधित प्रश्न
Compare the properties of electrons, protons and neutrons.
The mass of an electron is about `1/2000` times that of proton.
Which subatomic particle was discovered by : Chadwick ?
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 __________.
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.
Calculate the number of neutrons, protons and electrons:
- atomic number 3 and mass number 7
- atomic number 92 and mass number 238.
On the basis of Rutherford’s model of an atom, which subatomic particle is present in the nucleus of an atom?
Write the properties of neutrons.
α, β, γ rays are during the ratio active decay ______ of an atom.
The ratio of neutrons in C and Si with respective atomic masses 12 and 28 is ______.
