Chemistry Quiz 4: Ionic bond and covalent bond

Why are noble gases non-reactive?

• Their valence shell is incomplete

• their valence shell is complete

• they have 4 valence electrons

• they have 2 valence electrons

how does non-noble gases achieve stable electron configuration?

• by sharing and transferring electrons

• by sharing and transferring protons

• by sharing and transferring neutrons

• by adding new electrons to have 4 valence electrons.

All noble gases (except helium) has _____ valence electrons

• 2

• 4

• 6

• 8

octet rule states that ... ...

• there are 8 valence electrons for every element.

• atoms tend to form ions to achieve octets

• atoms tend to form bonds to achieve octets

• atoms tend to form molecules to achieve octets

what is an octet?

• a type of octopus

• the rhythm in the piano scale

• 8 valence electrons in the outermost shell

• 8 bonds between two atoms

how does an atom become an ion?

• by sharing electrons

• by sharing protons

• by gaining or losing electrons

• by gaining or losing protons

group 1 atoms lose electrons to form _____ ion

• 1+

• 2+

• 1-

• 2-

atoms in group 2 lose electrons to form ______ ions

• 1+

• 2+

• 1-

• 2-

atoms in group 15 to 17 ______ electrons to get an octet and they become ________ - charged

• lose... positively

• lose... negatively

• gain... positively

• gain... negatively

ionic bond is form as ____________ and ______________ react to produce ionic compound

• metals and metals

• metals and non-metals

• non-metals and non-metals

• noble gases and metals