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An atom has a mass number of 48 and 22 neutrons. How many protons would this atom have?
70 protons
toms
48 protons
26 protons
Atoms
22 protons
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discipulus

Answer:

[tex]mass \: number = n \: + p \\ 48 = 22 + p \\ p = 48 - 22 \\ = 26[/tex]

ayfat23

  • Mass number  is the sum of number of the proton and that of the neutron of that atom

It can be shown mathematical as

  • Mass number (m) = Neutron(N) + proton(p)

mass number = 48

neutrons = 22

  • Mass (m) = Neutron(N) + proton(p)

  • proton(p) = Mass (m) - Neutron(n)

Substitute the values

  • proton(p) = (48 - 22)

= 26 protons

  • Therefore , the atom has 26 protons

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