Chemistry 9.1 -9.2 Review Questions

What is the ionic charge on the chromium ion in the ionic compound that has the formula Cr₂ O₃?

• 3+

• 2-

• 5-

• 5+

Which element when combined with chlorine would most likely form an ionic compound?

• lithium

• carbon

• phosphorus

• bromine

Tags

NGSS.HS-PS1-1

A cation is any atom or group of atoms with

• a positive charge

• no charge

• a negative charge

• more electrons than the corresponding atoms

The cation Fe³⁺ is formed when

• an atom of iron loses 2 electrons

• an atom of zinc loses 2 electrons

• an atom of iron loses 3 electrons

• an atom of iron gains 3 electrons

The metals in Group 1A, 2A and 3A

• gain electrons when they form ions

• form ions with a charge found by subtracting 8 from the group number

• all form ions with 1+ charge

• lose electrons when they form ions

The nonmetals in Groups 5A, 6A and 7A

• lose electrons when they form ions

• form positively charged ions

• form ions with charges 3-, 2- and 1- respectively

• form ions with a numerical charge equal to their group number

Among the following which atom is most likely to form ion with a charge of 2+?

• O

• Na

• Al

• Ca

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When naming an ion of a transition metal that has more than one common ionic charge, the numerical value is indicated by a

• prefix

• suffix

• Roman numeral following the name

• superscripts after the name

An -ite or -ate ending on the name of a compound indicates that the compound

• is a binary ionic compound

• is a binary molecular compound

• contains a polyatomic anion

• contains a polyatomic cation

The atoms of Group B elements lose electrons when they form ions.

• True

• False