Chemical Bonds, Naming Chemicals, and Hydrocarbons

The word ferric is equivalent to

• Fe

• Fe²⁺

• Fe³⁺

• Fe⁴⁺

Which of the following pairs of atoms is least likely to form an ionic compound?

• Ba,F
• K,Cl
• N,O
• Li,Na

A positively charged ion attracts a(an) ________.

• neutral ion

• proton

• cation

• anion

In a Lewis dot diagram, the dots represent

• valence electons
• atomic nuclei
• core electrons
• electrons gained

Atoms share electrons in _________ bonding.

• covalent
• ionic
• metallic

The energy required to remove an electron from an atom is known as _______.

• ionization energy
• electron affinity
• electronegativity
• electron removal energy

Which of the following compounds is covalent?

• NaCl

• Ca(OH)₂

• NH₃

• Fe₂O₃

The following statements describe covalent compounds, EXCEPT:

• They are poor conductors of heat and electricity.
• Covalent compounds are shiny and lustrous.
• They have low melting and boiling points.
• They are made of nonmetals.

Bromine and chlorine are similar in their;

• number of neutrons
• valence electrons
• period number
• electron configuration

An element has an electron configuration of 1s²2s²2p². What is true to this element? (Check all that applies.)

• It has a valence electron of 4.

• It belongs to group number IVA.

• It belongs to period 2.

• It has a valence electron of 2.