What symbol is the mass number denoted?
A
S
M
LM
The mass number (symbol A, from the German word Atomgewicht (atomic weight), also called atomic mass number or nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus. It determines the atomic mass of atoms.
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Answers by country
A
S
M
LM
answers
Ghana
15
Pakistan
35
India
287
Malaysia
10
France
13
Poland
1963
the Netherlands
14
Australia
43
Greece
14
Singapore
10
Canada
17
Nigeria
80
the Philippines
28
the United States
126
the United Kingdom
107
Germany
35
Republic of Ireland
13