Front

How many single bonds will carbon look to make when it bonds covalently?

Back

4

Front

Which of the following elements does NOT form an ion with a charge of 2+? Beryllium, Strontium, Magnesium, Fluorine

Back

Fluorine

Front

When Alkali metals (Group 1) form ions, they ____. Options: lose 1 proton, gain 1 proton, lose 1 electron, gain 1 electron

Back

lose 1 electron

Front

How does fluorine (F) obey the octet rule when reacting to form compounds?

Back

It gains electrons.

Front

Which of the following pairs of elements is most likely to form an ionic compound? magnesium and fluorine , manganese and iron , oxygen and chlorine , sodium and aluminum

Back

magnesium and fluorine

Front

Which of the following shows correctly an ion pair and the ionic compound the two ions form?
Options: Sn⁴⁺ and N^3- form Sn₄N₃ , Cu²⁺ and O²- form Cu₂O₂ , Cr³⁺ and I- form CrI , Cr²⁺ and I^- form CrI₂

Back

Cr²⁺ and I^- form CrI₂

Front

How many valence electrons are transferred from the sodium atom to fluoride in the formation of the compound sodium fluoride?

Back

1

Front

What is the chemical formula of sodium nitride?
Options: NaN, Na₂N, Na₃N, NaN₃

Back

Na₃N

Front

What is the balanced chemical formula of iron (II) oxide?
Options: FeO, FeO₂, Fe₂O₂, Fe₂O

Back

FeO

Front

Select the correct formula for boron trichloride. Options: B₂Cl, B₃Cl, BCl₃, BCl₂

Back

BCl₃