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Those Crazy Chemists!

100

Rutherford's experiments led to the discovery of this.

Nucleus

200

This crazy scientist came up with the idea that electrons orbit around the nucleus in shells.

Bohr

300

Experiments with a cathode ray lead to the discovery of what?

Electrons

400

Double Jeopardy!!! This was the scientist that discovered electrons.

JJ Thompson

500

Name 3 of Dalton's 5 theories.

1. All matter is composed of atoms.

2. Atoms of the same element are exactly alike. Atoms of different elements are different.

3. Atoms cannot be subdivided, created, or destroyed.

4. Compounds are formed by the joining of two or more elements.

5. In chemical reactions, atoms are combined, separated, or rearranged.

Lazy Laws

100

This law stats that energy cannot be created nor destroyed.

Law of conservation of energy.

200

This law states that mass cannot be created nor destroyed.

Law of conservation of mass

300

This is the law that explains why in a compound of methanol, there will always be the same number of carbons, oxygens, and hydrogens.

Law of Definite Proportions

400

This law explains why one can find two different compounds containing the same element, just in different whole number ratios of each other.

Law of Multiple Proportions

500

This law was almost contradicted by Einstein's famous equation.

Law of Conservation of Mass

Isotopes

100

Isotopes are atoms of the same element that have different what?

Number of neutrons or mass

200

An atom of potassium contains 19 electrons and 20 neutrons. What is the mass number?

39

300

Double Jeopardy!!! Bromine-80 has an atomic number of 35. How many neutrons does it have?

45

400

As the mass number of the isotope of an element increases, the number of protons does what?

Remains the same.

500

Who are you voting for Snow Board?

Mr. Cramer

All Those Numbers

100

How many moles are in 6.0g of Carbon which has an atomic mass of 12.010 amu?

.50 mol

200

Determine the mass of 5.00 moles of Oxygen with a molar mass of 16.00 g/mol.

80.0g

300

How many moles are in 9.03X10²⁴ atoms?

15.0 moles

400

How many atoms are in 8.00 grams of chlorine?

1.36X10²³

500

Calculate the number of oxygen atoms in 10.0g of sulfur dioxide.

1.88X10²³ atoms

The Atom

100

This has the same mass as the proton

Neutron

200

The nucleus is made up of these

Protons and Nuetrons

300

A neutral atom has no charge because of this

Same number of protons and electrons

400

The name atom comes from a Greek word. What is the word AND what does it mean?

Atomos-Uncuttable

500

Explain the gold foil experiment and why it lead to the discovery of the nucleus.

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