Show:
Pre-Test
Charges
Subatomic
Numbers
Electrons
100
This is the smallest part of an element.
What is an atom?
100
Objects with the same charge do this when they come close to each other.
What is repel?
100
Three subatomic particles.
What are protons, neutrons, and electrons?
100
The sum of protons and neutrons in the nucleus of an atom.
What is mass number?
100

What is the space in which electrons move around in?

What is electron cloud? 

200
Neutrons are located outside of the nucleus. True or False?
False!
200
Objects with different charges do this when they come close to each other.
What is attract?
200
Located outside of the nucleus and have a negative charge.
What are electrons?
200
The number of protons in an atom of a certain element.
What is atomic number?
200

How many energy levels are in an electron cloud? 

What is four?

300
Electrons are located outside of the nucleus. True or False?
True!
300

What is the charge on a proton?

What is +1?

300
Located inside of the nucleus and have a positive charge.
What are protons?
300

The atomic number of Hydrogen

What is 1?

300

True or False: You can tell EXACTLY where an electron is at ANY given moment.

FALSE!

400
Protons and neutrons are about the same size. True or False?
True!
400

What is the charge on an electron?

What is -1? 

400
Atoms of different elements have different numbers of these.
What are protons?
400
The mass number of Potassium.
What is 39.098?
400

Which energy level is filled first?

The first energy level 

500
This is the smallest subatomic particle.
What is an electron?
500

What is the charge on a neutron?

What is zero?

500
Which subatomic particle is neutral or has no charge? 

What is neutrons? 

500

What is the atomic number of Helium?

What is two?

500

Which energy level hold the largest amount of electrons?

The fourth energy level