Which of the following correctly represents the electronic distribution in the Mg atom?
Anonymous Quiz
36%
282
35%
281
15%
278
14%
None
The ion of an element has 3 positive charges. Mass number of the atom is 27 and the number of neutrons is 14. What is the number of electrons in the ion?
Anonymous Quiz
32%
13
38%
10
22%
14
8%
16
How many electrons are present in M-shell of an element with atomic number 20?
Anonymous Quiz
10%
5
53%
8
18%
12
19%
18
👎2
Cathode rays consist of negatively charged particles known as ………………
Anonymous Quiz
62%
Electrons
22%
Proton
15%
Neutron
2%
None
😁2
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