In the nucleus of an Adam there are 18 protons and 20 neutrons what are the atomic number and mass number of this isotope

Chemistry

2 answers:

yKpoI14uk [10]3 years ago

6 0

Atomic number = 18 (Number of protons)
Mass number = 18 + 20 (Number of protons + neutrons)

abruzzese [7]3 years ago

3 0

Answer:

The atomic number this isotope is 18.

The atomic mass this isotope is 38.

Explanation:

Atomic number(Z) = Total numbers of protons

Mass number (A) = Total number of protons(Z) + Total number of neutrons(N)

A = Z + N

We have :

Number of protons in a nucleus of a given atom of an isotope, Z= 18

Number of neutrons in a nucleus of a given atom of an isotope, N= 20

A = Z + N = 18 + 20 = 38

The atomic number this isotope is 18.

The mass number this isotope is 38.

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