Show:
Ions
Periodic Table
Mass
Rutherford
Misc
100

What is different between an ion and its regular element? 

The number of electrons

100

Why do we place elements in the same group on the periodic table? 

They have similar properties

100

How do you find the mass of an atom?

neutrons+protons

100

What is in the nucleus of an atom?

Protons and neutrons

100

According to the U.S. Constitution, the president is part of which of the three branches of government?

1. Executive

2. Judical

3. Legislative

1. Executive

200

How do we find the charge of an ion? 

Protons-electrons

200

I have a calcium atom. Which of the following can I expect to have similar properties? 

1. Beryllium

2. Sodium

3. Neon

4. Fluorine

1. Beryllium

200

When two atoms have the same number of protons, but different numbers of neutrons, what are they called? 

isotopes

200

What is the structure of an atom? Where are things located? 

In the nucleus: Protons and Nuetrons

Outside the nucleus: Electrons

200

What is the process of water turning into vapor called?

Evaporation

300

If I have 25 protons and 23 electrons, what is my charge? 

+2

300

If you change the number of protons in an element, what happens? 

You change the element

300

If my nucleus has 43 protons and 45 neutrons, what is my mass? 

43+45=88

300

What did Rutherford do in his experiment? (Gold Foil)

He shot alpha particles at a sheet of gold foil.

300

What is the process by which plants make their food called?

Photosynthesis

400

If my atom has 22 protons, 23 neutrons, and 21 electrons, what is my charge? 

+1

400

Why can I expect Barium and Radium to react similarly to water? 

They are in the same group on the periodic table, so they have similar qualities

400

I have an atom with 22 protons, 21 neutrons, and 23 electrons. What is my mass? 

22+21=43

400

What was the result of the experiment? What happened?

Most of the nuclei went straight through, but some were deflected. 
400

If a backyard is 50 feet long and 20 feet wide, how many square feet is the yard? (Include units!)

1000 Ft2

500

In Bohr models (circly thingies), how do we draw electrons?

Dots on the orbitals

500

Which of the following would I expect to act like Neon? 

1. Chlorine

2. Fluorine

3. Krypton

4. Sodium

3. Krypton

500

Why are the masses on a periodic table decimals?

The mass on a periodic table is an average. You take the weighted average of all the isotopes and get the AVERAGE atomic mass. 
500

What did Rutherford's experiment tell us? What did we learn?

An atom has a small, positively charged center called the nucleus. 

500

 If a car is traveling at 40 mph, how long will it take to go 190 miles?

4 hours and 45 min

OR 4.75 hrs