2 years ago

Hello <3 I just need some help with periodic table of elements.

Chemistry

2 answers:

garik1379 [7]2 years ago

8 0

Answer:

Explanation:

An atomic number of 11 means this atom will have 11 protons. A mass number of 23 means 23 - 11 this atom will have 12 neutrons. Since this atom is neutral the positive protons must be equal to the negative electrons. This atom will have 11 electrons

Elenna [48]2 years ago

3 0

Answer:

Sodium: Na

It is a metal

It's family is Alkali metals

Its atomic number is 11

It has 12 neutrons, 11 protons, 11 electrons

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