an atom contains 3 protons , 3 electrons and 4 neutrons a) what is its atomic no. b) what is its mass no. c) what is its symbol and name
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0
Explanation:
- atomic number -3
- 6.941u-mass no.
- it is LITHIUM and its symbol is -Li
- If it is help ful to you please mark me as brainliest
Answered by
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I) atomic number will be 3
ii) mass no. = protons + neutron
= 3 + 4 = 7
Mass no.= 7
iii) element = lithium
Symbol = Li
Hope this helps :)
ii) mass no. = protons + neutron
= 3 + 4 = 7
Mass no.= 7
iii) element = lithium
Symbol = Li
Hope this helps :)
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