Chemistry Test

Nitrogen, N, will form which of the following ions?

• N

• N^-3

• N^-5

• N⁺⁵

A charged particle that has gained or lost electrons is called a _____.

• molecule
• ion
• isotope
• element

Write the correct formula for an ionic compound formed from S^2- and Rb¹⁺.

• SRb₂
• SRb
• Rb₂S
• RbS₂

In chemical compounds, covalent bonds form when

• the electronegativity difference between two atoms is very large.
• electrons are completely transferred between two metals.
• pairs of electrons are shared between two nonmetal atoms.
• two nonmetal atoms are attracted to each other by opposite charges.

Which of the following is an example of an IONIC COMPOUND?

• NaCl
• H₂O
• CO₂
• NO

Which of the following is an example of a COVALENT COMPOUND?

• H₂S
• KI
• CaCl₂
• MgO

Name this compound: LiO

• lithium oxide
• oxygen monolithium
• monolithium dioxide
• dilithium dioxide

Which of the pair of elements form an ionic bond?

• Magnesium and Oxygen

• Magnesium and Sodium

• Iron and Zinc

• Nitrogen and Hydrogen

Predict the bond that is formed between Phosophorus and Chlorine?

• Ionic

• Covalent

• Metallic

• H-bond

What is the basis of a metallic bond?

• the attraction of neutral metal atoms.
• the attraction between protons and neutrons.
• the attraction between positive metal ions and interlocking electrons.
• the attraction between positive metal ions and free floating electrons.