The number of protons that are in an element with an atomic number of eight and a mass number of 18 will be eight.
ATOMIC STRUCTURE
Atoms are made up of protons and neutrons at the nucleus of the atom which is most time located at the center of the atom. And electrons at the atomic shell. Atoms are made of;
The number of protons that are in an element with an atomic number of eight and a mass number of 18 will be eight.
Because, the number of protons is equal to the atomic number.
Mass number = number of protons + number of neutrons
This means, the number of neutron will be 10.
Therefore, the number of protons that are in an element with an atomic number of eight is eight
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