Exploring Inorganic Compounds and Trends

What is the atomic number of carbon?

• 6

• 5

• 7

• 12

Which element has the symbol 'Fe'?

• Lead

• Copper

• Iron

• Gold

What is the charge of a sulfate ion (SO4)?

• +2

• 0

• -1

• -2

Name the compound formed by sodium and chlorine.

• Sodium bromide (NaBr)

• Sodium phosphate (Na3PO4)

• Sodium chloride (NaCl)

• Sodium sulfate (Na2SO4)

What is the trend in electronegativity across a period?

• Electronegativity fluctuates randomly across a period.

• Electronegativity remains constant across a period.

• Electronegativity increases across a period.

• Electronegativity decreases across a period.

How do you name the compound CuCl2?

• copper dichloride

• copper(I) chloride

• copper(II) chloride

• copper(III) chloride

What is the formula for ammonium nitrate?

• NH4NO3

• NH4NO2

• NH3NO3

• N2H4O3

What is the primary characteristic of alkali metals?

• Non-reactive and filled outermost shell.

• High reactivity and one electron in the outermost shell.

• Low reactivity and two electrons in the outermost shell.

• High conductivity and three electrons in the outermost shell.

How do you write the formula for iron(III) oxide?

• Fe2O3

• Fe3O4

• FeO

• Fe2O2

What is the trend in atomic radius down a group?

• The atomic radius fluctuates randomly down a group.

• The atomic radius increases down a group.

• The atomic radius decreases down a group.

• The atomic radius remains constant down a group.