Chap 7 Science

What is Chemical Bonding?

• • Combining of atoms to form new substances with new & unique properties to become stable

• • The rules of chemical bonding are determined by the structure of the atom (mainly the valence electrons)

What are the rules of chemical bonding?

•  chemical bonding are determined by the structure of the atom (mainly the valence electrons)

• • Reactivity is determined by the valence electrons ( to become stable an atom needs 0 or 8 valence electrons )

How many valence electrons are required to be stable?

• 7

• 0 or 8

• 5 or 3

Atoms are

• NEUTRAL

• POSITIVE

• NEGATIVE

Ionic bonding involves..

• a transfer of electrons

• a transfer of protons

• a transfer of neutrons

Ionic bonding involves..

• a metal and nonmetal

• a nonmetal and nonmetal

Ionic bonding takes place between..

• a positive ion and negative ion

• a positive ion and positive ion

• a negative ion and negative ion

• a neutral ion and neutral ion

an ionic bond is..

• strong

• weak

In an ionic bond, 1 atom... and 1 atom ...

• loses electrons, gains electrons

• gains electrons, gains electrons

Metals are positive

• TRUE

• FALSE