covalent bonds

Covalent bonds are formed when atoms __________ in their outer shells.

share electrons

Covalent bond formation typically occurs between __________ atoms.

non-metal

Examples of common non-metals include carbon, nitrogen, __________, and halogens.

oxygen

Non-metals have valence shells that are __________ or more than half full.

half full

Atoms can form __________, double, or triple bonds depending on the available space in the outer shell.

single bonds

Covalent bonds can be represented by a __________ to indicate a single bond.

straight line

Dot and cross diagrams illustrate only the __________ involved in bonding.

valence electrons

Covalent bonds are __________ in position, unlike ionic bonds.

fixed

Giant covalent structures like diamond involve many atoms bonded together in a __________ network.

continuous

Allotropes are different __________ forms of the same element.

structural