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Worksheetsisotopes and isobars
Total questions: 10
Worksheet time: 8mins
atomic number o an element is the same as the number of -------------- in the nucleus of the atom
electron
proton
neutron
the atomic number is denoted by the letter (a)
If Z=3 , what would be the valency of the element?
3
2
1
0
---------------------------- is defined as the number of protons present in the nucleus of an atom
(a)
-------------------number is defined as the sum of the total number of protons and neutrons present in the nucleus of the atom
mass
atomic
weight
Protium , deuterium , tritium are the isotopes of--------------
helium
hydrogen
carbon
--------------are defined as the atoms of the same element,having the same atomic number but different mass numbers
isotopes
isobars
-------------------occurs in nature in two isotopic forms , with masses 35u and 37u
sulphur
chlorine
argon
hydrogen
isotope of -------------------- is used in the treatment of cancer
uranium
iodine
cobalt
atoms of different elements with different atomic numbers and same mass number , are known as----------
isotopes
isobars
