Chapter 2

Question 1

Number of protons=?

Answer 1

Number of electrons

Question 2

What is the atomic number of magnesium?

Answer 2

12

Question 3

What is the electron shell with the highest amount of energy?

Answer 3

outermost shell

Question 4

Groups in the periodic table show the ______________ an element has.

Answer 4

number of valence electrons

Question 5

What are the alkali metals?

Answer 5

lithium, sodium, potassium

Question 6

Periods in the periodic table show the ______________ an element has.

Answer 6

number of electron shells

Question 7

What is another meaning for unreactive?

Answer 7

inert

Question 8

Difference between ionic bond and covalent bond

Answer 8

ionic: lose or gain electrons
covalent: share electrons

Question 9

sodium + chlorine

Answer 9

NaCl

Question 10

Examples of giant covalent structures

Answer 10

diamond, graphite

Question 11

What are the properties of ionic structures?

Answer 11

high melting and boiling point, conduct electricity

Question 12

What are the properties of covalent structures?

Answer 12

low melting and boiling point, do not conduct electricity