Chemistry Quiz

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

• P^3+

• P^5+

• P^3-

• P^5-

How many valence electrons does phosphorus have?

• 2

• 3

• 5

• 8

What is the ionic charge of phosphorus when it becomes an ion?

• 2+

• 3+

• 1-

• 3-

In an ionic bond, what happens to electrons between a metal atom and a nonmetal atom?

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

• Both metal and nonmetal atoms lose electrons.

• Both metal and nonmetal atoms gain electrons.

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

What should be done next to complete the ionic bond between beryllium and chlorine in the diagram?

• Add another chlorine atom.

• Add another Beryllium atom

• Nothing it is complete

How many valence electrons does each zinc atom lose in the formation of zinc phosphide, Zn₃P₂?

• 1

• 2

• 3

• 6

What is the chemical formula for rubidium nitride, given that rubidium is in the same chemical family as lithium?

• Rb₂N

• RbN

• Rb₃N

• RbN₃

What is the molecular formula for the substance shown in the Gizmo with the 'Select a substance' option set to Fluorine?

• NH3

• H2O

• F2

• O2

According to the Gizmo, which feature allows you to view the Lewis diagram for the selected substance?

• Speed slider

• Check button

• Show Lewis diagram checkbox

• Hide inner electrons checkbox

How many covalent bonds are formed by the nitrogen atom in ammonia (NH3)?

• 1 covalent bond

• 2 covalent bonds

• 3 covalent bonds

• 4 covalent bonds