covalent bonding

Is Hydrogen considered a metal or a non-metal?

• Metal
• Non-metal

What two types of atoms make a covalent bond?

• 2 Nonmetals
• 1 Nonmetal and 1 Metal
• 2 Metals
• 2 Noble Gases

How are covalent bonds explained?

• When one atom takes the other atom's electron
• When the atom shares an electron with an another atom
• When the two nucleus merge
• When the neutrons leave the nucleus

In chemical compounds, covalent bonds form when

• the electronegativity difference between two atoms is very large.
• electrons are completely transferred between two metals.
• pairs of electrons are shared between two nonmetal atoms.
• two nonmetal atoms are attracted to each other by opposite charges.

How many valence electrons does nitrogen have?

• 3
• 2
• 5
• 1

Which of the following is the best representation of a molecule of fluorine (F₂)?

• A

• B

• C

• D

How many electrons are shared in a double bond?

• 2
• 4
• 6
• 8

The chemical formula of sulfur hexabromide is

• SBr₆
• S₆Br
• S(VI)Br
• S6Br

Silicon dioxide is the compound in sand. What is its formula?

• SO₂

• NaO₂

• SiO₂

• SiO

What is the formula for diphosphorus pentoxide?

• P₂O₅

• PO₅

• P₅O₂

• P₂O₆