Chemical Bonding

Luke was in the lab when her reacted hydrogen and oxygen together to form H2O (water). The chemical bond formed when the two atoms share electrons is called a(n)

• covalent bond
• ionic bond
• metallic bond
• electron bond

Which atoms are likely to form covalent bonds?

• metal atoms that share electrons
• nonmetal atoms that share electrons
• metal atoms that share protons
• nonmetal atoms that share protons

Sodium and chlorine react to form sodium chloride which is also known as table salt. Which of the following is the reason why atoms of sodium and chlorine attract each other in a salt crystal?

• sodium has a positive charge and chlorine has a negative charge
• sodium has a negative charge and chlorine has a positive charge
• both have a positive charge
• both have a negative charge

Cations are ions with a __________ charge that are formed when an atom ___________ electrons

• positive/gains
• negative/loses
• negative/gains
• positive/loses

Anions are ions with a __________ charge that are formed when an atom ___________ electrons

• positive/gains
• negative/loses
• negative/gains
• positive/loses

Ionic compounds are made of __________ and ________

• metals and metals
• metals and nonmetals
• nonmetals and nonmetals
• metalloids and metals

Covalent compounds are made of __________ and ___________

• metals and metals
• metals and nonmetals
• nonmetals and nonmetals
• metalloids and metals

What is the chemical formula for magnesium bromide ______

Which of the following is the correct name for a compound between Magnesium and Sulfur?

• magnesium sulfur
• magnesium (II) sulfide
• magnesium sulfide
• dimagnesium disulfide

Which combination of elements would most likely form an ionic compound?

• hydrogen and oxygen
• carbon and chlorine
• sodium and fluorine
• silicon and sulfur