Week 2

Question 1

Define atomic mass/relative atomic mass/atomic weight?

Answer 1

Number of protons and neutrons

Question 2

What goes down the periodic table?

Answer 2

Groups

Question 3

What goes across the periodic table?

Answer 3

Periods

Question 4

Name the types of elements on the periodic table?

Answer 4

Alkali metals
Alkaline earth metals
Transition metals
Other metals
Metalloids 
Other non metals
Halogens
Nobel gasses

Question 5

What is the rule of an element with no charge?

Answer 5

Number of electrons has to equal the number of protons

Question 6

Define isotopes?

Answer 6

Different versions of an element. The have the same number of protons but a different number of electrons.

Question 7

Patterns of the electron structures?

Answer 7

Electrons increase by one
Period = number of shells
Group = number of valence electrons

Question 8

Define valence electrons?

Answer 8

Number of electrons on the valence shell

Question 9

Define valence shell?

Answer 9

The outermost shell of an atom

Question 10

Define atoms?

Answer 10

The smallest unit of matter
Made up of protons, neutrons and electrons
Have zero or no charge

Question 11

Define element?

Answer 11

One specific type of atom

Each element has a specific atomic number

Question 12

Define ion?

Answer 12

Any charged particle

In chemistry, this usually happens by gaining or losing electrons

Question 13

Define atomic number?

Answer 13

Number of protons

Question 14

Define polyatomic ions?

Answer 14

A charged chemical species composed of two or more covalently bonded atoms

Question 15

What do Nobel gasses have?

Answer 15

Full valence shells

Question 16

Full valence shells are ______.

Answer 16

Stable

Question 17

Clues on how to find out the type of an element?

Answer 17

If it ends with:
ion = Nobel gas
ium = metal
ine = halogen