Question

An electrically neutral atom has 10 electrons and 10 neutrons. find the atomic number and the atomic mass of the atom. How many protons are likely to be present in the atom? Identify the atom, write its name and symbol and state whether its a metal or a non metal.​

Answer 1

Explanation:

atomic number =number of proton=10

atomic mass =proton+neutron=10+10=20

Answer 2

Answer:

Atomic Number

Name Protons Electrons

Helium 2 2

Lithium. 3 3

Beryllium 4 4

Boron 5 5

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