Chemistry Quiz 1 Review

Classifying Matter

100

A substance that is make of only ONE kind of matter is called a _________?

Pure Substance

200

Carbon is an example of a(n) ___________.

Element

300

A visible blend of different substances is know as a(n) __________.

Mechanical Mixture

400

Baking soda (NaHCO₃) is an example of a __________.

Compound

500

Acid rain (acids dissolved in water) is an example of a _________.

Solution

History of the Atom

100

In the current atomic theory, rather that orbiting in electron shells, it is said that electrons exist in electron ________.

Orbitals

200

One of the key points of our current atomic theory is that aroms are made of ________, _________, and _________.

Protons, Neutrons, Electrons

300

In Rutherfords model of the atom, he compared it to the solar system. In this example, the Sun represents what part of the atom?

Nucleus

400

Bohr said the electrons orbited the nucleus of the atom in stable energy levels, also known as ________.

Electron Shells

500

JJ Thomson's largest contribution to the understanding of the atom was the discovery of the __________.

Electron

Parts of an Atom

100

The nucleus of the atom contains both __________ and ___________.

Protons and Neutrons

200

For atoms on the periodic table, what do we know about the number of protons and electons?

They are the same

300

How do you find the number of neutrons in an atom?

Atomic Mass - Atomic Number

400

The atomic mass of an element is the combined number of _______ and ________.

Protons and Neutrons

500

How many neutrons are in 1 atom of copper?

35

Metals/Non-Metals

100

On the periodic table, which side of the staircase would you find non-metals?

Right

200

Columns on the periodic table are called _________.

Families

300

Rows of on the periodic table are called ________.

Periods

400

List 3 properties of non-metals.

Any state of matter (often gas)

Dull

Poor conductors of heat/electricity

Brittle/Non-Ductile

500

Elements to the left of the periodic staircase are metals, with ________ being the exception.

Hydrogen

Periodic Table

100

Alkali metals are found in what group?

1

200

What is the name of the family in group 2?

Alkaline Earth Metals

300

What happens the size of atoms/elements as you move down the periodic table?

They get bigger

400

One of the defining characteristics of alkali metals is that they are extremely __________.

Reactive

500

List 4 elements that are Noble Gases

Helium, Neon, Argon, Radon, Krypton, Xenon