WorksheetsStructure of an atom
Total questions: 10
Worksheet time: 6mins
The particle not present in an ordinary hydrogen atom is:
Proton
Nucleus
Electron
Neutron
An atom with 3 protons and 4 neutrons will have a valency of
3
7
1
4
Find the percent of isotopes of 16x8 and 18x8
(a)
N shell can have a maximum of ............ electrons.
32
2
18
8
Calculate the number of neutrons present in the nucleus of an element X which is represented as 31x15
(a)
Isotopes of an element have?
The same physical properties
Different Chemical properties
Different number of neutrons
Different atomic number
Fill in the blanks:
Atomic Number - 10
Mass Number - 22
Neutrons-?
(a)
The electronic configuration of an element ‘Z’ is 2,8,8. Is ‘Z’ a metal or a non-metal?
Metal
Non-Metal
In element X, there are 6 valence electrons. If it acquires noble gas configuration by accepting more electrons, what would be the charge of the ion
(a)
The ion of an element has 3 positive charges. The mass number of the atom is 27 and the number
of neutrons is 14. What is the number of electrons in the ion?
13
10
14
16
