Question

An atom ofa an element is represented as x 9 19 how many electrons and neutrons are present in the atom​

Answer 1

Answer:

9 electrons and 10 neutrons are present.

Explanation:

Atomic number is also equal to number of electrons or protons.

Atomic mass number is equal to sum of protons and neutrons.

but protons=electrons

19=9+neutrons

19-9=neutrons

therefore there are 9 electrons and 10 neutrons

Answer 2

Answer:

9 electrons and 10 neutrons are present.

Explanation:

Atomic mass number is equal to sum of protons and neutrons. but protons=electrons 19=9+neutrons 19-9=neutrons therefore there are 9 electrons and 10 neutrons