Understanding Compounds and Valence Electrons

What is a compound?

• A type of metal

• A substance formed when different elements are bonded together

• A mixture of elements that are not bonded

• A single element in its pure form

How can you identify a covalent compound in a diagram?

• By checking for a full outermost shell

• By identifying a single element

• By finding metals and non-metals together

• By looking for overlapping electron shells forming a shared region

What is the main difference between ionic and covalent compounds?

• Both are formed by transferring electrons

• Both are formed by sharing electrons

• Ionic compounds are formed by sharing electrons, covalent by transferring

• Covalent compounds are formed by sharing electrons, ionic by transferring

Which group in the periodic table has a full outermost shell?

• Group 1

• Group 16

• Group 17

• Group 18

If an element has seven valence electrons, which group does it belong to?

• Group 18

• Group 17

• Group 16

• Group 15