IONIC and COVALENT BONDS Guided Notes

Atoms with unfilled valence shells are considered ___unstable____.

• unstable

• stable

• neutral

• inert

Atoms will try to fill their outer shells by _____bonding_______ with other atoms.

• bonding

• repelling

• ignoring

• isolating

_____Chemical bond________ - the attractive force that holds atoms or ions together in a compound.

• Chemical bond

• Ionic bond

• Covalent bond

• Metallic bond

Tags

NGSS.HS-PS1-3

Atoms form atomic bonds to become more ______stable_______.

• stable

• unstable

• reactive

• neutral

Atoms become more stable by filling their valence shell or at least meeting the octet rule by getting 8 valence electrons.

• What is the significance of filling the valence shell or meeting the octet rule in terms of atomic stability?

• It makes atoms more reactive.

• It causes atoms to lose electrons.

• It results in atoms having a positive charge.

3 Main Types of ___chemical____ bonds used by atoms to fill their valence shell: a. __Covalent_________ b. Metallic c. Ionic

Tags

NGSS.HS-PS1-1

They tell us: a. The ________type________ of atoms present b. The ______number_________ of atoms present c. The type of compound i. Example: Table Salt = Sodium Chloride ii. Chemical formula is NaCl iii. Count the atoms present: 1 Na atom and 1 Cl atom

• a. The type of atoms present b. The number of atoms present c. The type of compound

• a. The color of atoms present b. The weight of atoms present c. The type of compound

• a. The size of atoms present b. The number of molecules present c. The type of compound

• a. The charge of atoms present b. The number of atoms present c. The type of element

Tags

NGSS.MS-PS1-1

A ________subscript________ is a small number that is in a chemical formula. If no subscript is present, assume that it is 1.

• subscript

• coefficient

• prefix

• suffix

Sometimes there are _____parentheses______ (polyatomic ions) with a subscript. The subscript only applies to the atoms ____within_____ the parentheses.

Sometimes there are subscripts _____IN______ the parentheses.

• IN

• OUT

• AROUND

• UNDER