Questions about losing or gaining electrons in chemical reactions?

Question

These questions are from my homeschooling. I'm very confused about these questions, so it would be very helpful if you could explain each one a little.


A) The maximum number of electrons that can be held in the valence shell of beryllium is 8. Would beryllium be more likely to lose or gain electrons in a chemical reaction?

B) If beryllium formed an ion, what would be it's chemical formula?

C) With which of the following elements would beryllium most likely form an ionic bond?

Na
Ca
Fe
Br

I think question C would be Ca.

I would just ask my teacher to explain this stuff to me, but I don't have one.

Answer 1

Beryllium (Be) ionical has a 2+ charge like Mg or Ca so it loses electrons.

Be2+ would be the formula.


Ionic bonds are between oppositely charged ions so it would have to be Bromine as the others are positively charged. (Fe2+ / Fe3+, Ca2+, B-)

Answer 2

Beryllium would like to lose two electrons so it can reach the stable state of a noble gas electron configuration.

2 Ba2+

3. Br, becuase Br is the only element in that list that forms a negative ion

Answer 3

Ga - Lose 3 Sn - Gain 4 or lose 4 Cl - Gain 1 Se - Gain 2

Answer 4

A. It would be more likely to lose electrons because it is an alkali earth metal.
B. B+2
C. Bromine because the others are metals.

Answer 5

a)THE ELECTRONIC CONGREGATION OF BERYLLIUM IS

2,6

SO IT WILL GAIN 2 ELECTRONS IN ORDER TO COMPLETE IT'S SHELL


B) Be-2

C)I DON'T KNOW

Answer 6

A) Lose.

B) Be2+

C) Sodium, but then Be has to form an anion.

Answer 7

sorry im baffled when it comes to chemistry but hope these help you.

http://www.swbic.org/education/webquests/atomsions1.php