Question

An atom of sodium-23 (Na-23) has a net charge of +1. Identify the number of protons, neutrons, and electrons in the atom. Then, explain how you determined the number of each type of particle. Use the periodic table to help you.

Answer 1

Number of proton is 11

Number of neutrons is 12

Number of electrons is 10

Step-by-step explanation:

For a neutral Na, Sodium atom:

The mass number P+N = 23

Atomic number(E or P) = 11

A charged Na atom that has lost an electron is positively charged and so:

Number of proton = 11 (Still the same)

Number of neutrons = 12

Number of electrons = 11-1=10 (the atom has lost an electron)

If an atom loses electron, it becomes positively charged ie P>E

Answer 2

It contains 11 protons in the nucleus.

It contains 12 neutrons in the nucleus.

It contains 10 electrons surrounding the nucleus.

The number of electrons are calculated from net charge and charge of proton (+1) and electron (–1).

12 neutrons are calculated from atomic number: 11 and mass number: 23.

Step-by-step explanation:

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