3 years ago

Which of the following represents an ion 4He Ca Mg Na+

2 answers:

5 0

The answer is Na⁺.

Na⁺ is a positive ion of sodium that is due by the loss of one electron.
4He represents four atoms of helium. It is an idel gas, that do not form elementary molecules and exist in atom form.
Ca represent one atom of calcium and Mg one atom of magnesium. They are metals and do not form elementary molecules.

Evgesh-ka [11]3 years ago

5 0

Answer:

Na+

Explanation:

Atoms may loose or gain electrons in order to attain octate.

Chemical species obtained after loosing or gaining electrons are called ions.

When an element losses electrons, positively charged ion is formed.

When an element gains electrons, negatively charged ion is formed.

Among the given, only Na+ carry a positive charge, rest are neutral.

Therefore, Na+ is an ion.

You might be interested in

What is equation for Na + Br2= NaBr

NeX [460]

Should be 2Na + Br2 = 2NaBr :)

6 0

3 years ago

in the cell, newely made proteins move directly from the ribosomes into the rough _____ _____, where they are chemically modifie

olga nikolaevna [1]

Answer:

endoplasmic reticulum

Explanation:

there it is

8 0

3 years ago

Please help, I will give brainliest

jeka57 [31]

5.64 (.) 10^14Hz. I hope this is correct. Sorry if i am all the way wrong. Enjoy your day and I hope you are coping with virtual learning because, I am struggling:)