Physical Science Bonding

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Multiple Choice

When is an atom stable?

• when its electrons are evenly distributed through its energy levels

• when its lowest occupied energy level is filled with electrons

• when its highest unoccupied energy level is filled with electrons

• when its highest occupied energy level is filled with electrons

Multiple Choice

Which description applies to an element that has two valence electrons?

• reactive metal

• nonreactive metal

• reactive nonmetal

• nonreactive nonmetal

Multiple Choice

How do sodium and chlorine both achieve stable electron configurations when they react?

• An electron is transferred from the sodium atom to the chlorine atom

• An electron is transferred from the chlorine atom to the sodium atom

• Both atoms gain one electron

• Both atoms lose one electron

Multiple Choice

Why do ionic compounds tend to have high melting points?

• Ionic compounds contain more than one element, which causes a high melting point

• Ionic compounds cannot absorb energy efficiently because they contain ions

• An ionic compound contains metal atoms that raise its melting point

• A strong electrical attraction means ions require a lot of energy to move apart

Multiple Choice

The ratio of aluminum ions to chloride ions in aluminum chloride (AlC13) is 3:1

• True

• False

Multiple Choice

What ion will be formed by the phosphorus atom shown below when it has a stable set of valence electrons?

• P⁵⁺

• P³⁺

• P^5-

• P^3-

Multiple Choice

Which of the following is the best description of how electrons are transferred in an ionic bond?

• A metal atom loses electrons and a nonmetal atom gains electrons.

• A metal atom gains electrons and a nonmetal atom loses electrons.

• A metal and a nonmetal atom lose electrons.

• A metal and a nonmetal atom gain electrons.

Multiple Choice

A user is constructing an ionic bond between beryllium and chlorine and has reached the stage below. What should the user do next?

• Transfer an electron from the beryllium atom to the chlorine atom.

• Transfer an electron from the chlorine atom to the beryllium atom.

• Add another beryllium atom.

• Add another chlorine atom.

Multiple Choice

Zinc phosphide, Zn₃P₂, is often used as a rat poison. Phosphorus has 5 valence electrons. How many valence electrons does each zinc atom lose?

• 1

• 2

• 3

• 4

Multiple Choice

Lithium nitride has the chemical formula Li₃N. Rubidium is in the same chemical family as lithium. What is the formula of rubidium nitride?

• RbN

• RbN₃

• Rb₃N

• Rb₂N₃