Review for Chemistry Test

Radiation

100

Which type of radiation is positive?

Alpha 

200

Which type of radiation is negative?

Beta

300

Which radiation is neutral

Gamma

400

Which type of radiation is attracted to the positive plate?

Negative Radiation/Beta

500

Which type of radiation is attracted to the negative plate?

Alpha Radiation/Positive radiation 

Which Scientist?

100

Created a model where Electrons orbit the nucleus 

Niels Bohr

200

Discovered atoms have negative particles (electrons) using the cathode ray tube

JJ Thomson 

300

Gold Foil Experiment 

Ernest Rutherford

400

Stated that all matter around us is made up of indivisible tiny particles called "atomos"

Democritus 

500

An English School Teacher who created modern Atomic Theory 

John Dalton 

Dalton's Postulates

100

Dalton's First Postulate 

Elements are made of tiny particles called atoms

200

Dalton's second postulate 

Atoms of one element are identical, while atoms of a different element are different

300

Dalton's fourth postulate 

Different atoms form compounds in constant ratios 

400

Dalton's third postulate

Atoms are conserved or rearranged in a reaction (think law of conservation matter) 

500

The smallest, indivisible unit of matter is the...

Atom 

Periodic Problems

100

How many protons does Oxygen have?

8 

200

How many electrons does Nitrogen have?

7

300

What is the atomic mass of Hydrogen?

1.001

400

What group is Flourine in?

17

500

How many neutrons does Xenon have?

77

Misc.

100

How do we get an elements atomic mass?

The average of an elements isotopes

200

What is Ms. Hanley's favorite element?

Carbon :) hehe 

300

How do we find out the number of protons an electron has?

Atomic number 

400

Different versions of one element are called 

Isotopes 

500

Name the number that identifies the number of protons in an element and where it can be found?

Atomic Number; Top of the box (not the number with the decimal)