Chemical Bonding

What is a Chemical Bond?

• a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds

• the complete transfer of valence electron(s) between atoms

• involves the sharing of electrons to form electron pairs between atoms.

• a process in which one or more substances, the reactants, are converted to one or more different substances

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-3

How do valence electrons affect atoms?

• they don't

• they determine how an atom explode with another atom

• they determine how an atom will bond with another atom or if it will fail to react chemically

• the first shell holds 2 electrons and the shells after that hold 8.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When is an atom considered to be stable?

• when all there are 7 electrons in the outer shell

• When it has a full outermost energy level

• when the innermost energy level is full

• when there are 6 electrons in the outer shell.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which elements on the periodic table have stable atoms?

• Group 18 (noble gases)

• Group 17 (halogens)

• Group 1 (alkali metals)

• Group 2 (alkaline earth metals)

Why are the halogens (group 18 elements) considered to be stable?

Tags

NGSS.HS-PS1-1

Ionic bonds _________ electrons

Covalent bonds ___________ electrons.

Covalent bonds occur between two _________________.

• nonmetals

• metals

• transition metals

• metalloids

Tags

NGSS.MS-PS1-1

Ionic bonds occur between a ______________ and a ___________________.

• metal, metal

• nonmetal, nonmetal

• metal, nonmetal

• transition metal, metal

A cation has a ___________ charge.