Atoms
Periodic Table
Chemical and physical properties
Mass
100

Name all 3 subatomic particles

protons, neutrons, electrons
100

What does an atomic number tell you about atoms of that element?

The number of protons

100

Ms. Young is 5' 6". Is this a physical or chemical property?

physical!

100

Which subatomic particles weigh 1 amu?

neutrons and protons

200

Where are the electrons in an atom?

orbitals/rings/on the outside of the nucleus

200

What is a vertical column of elements on the periodic table called?

A group or family

200

A chemical reaction is indicative of a physical or chemical property?

chemical

200

An atom has 3 protons and 3 neutrons. How much mass?

6 amu

300

State the neutron to proton ratio in He-4

2:2

300

What is a horizontal row of elements called on the periodic table?

A period

300

Identify the positive ion in an HCl solution.

H+

300

How many amu is one water molecule?

18

400

An oxygen atom has a -2 charge. What's the proton to electron ratio?

8:10

400

Bromine and iodine are elements in Group 17. They have the same amount of...

electrons

400

How will the concentration of ions in seawater change if some of the water evaporates?

They will be more concentrated (it will increase)

400

Atomic mass is determined by the mass of all natural isotopes AND what else?

their abundance