Chemistry Midterm Review

Let's Count

100

How many energy levels do elements in period 4 have?

What is 4?

200

How many electrons does a neutral atom of Gallium have? 

What is 31 electrons?

300

What is the charge of an Aluminum ion? 

What is 3+ ?

400

How many atoms in the Chemical Formula....Ca(SO₄)_{2 ?}

What is 11?

500

Organization of data to understand it from the experiment

What is analyze results

Matter

100

Color (physical or chemical property

What is physical

200

Anything that has mass and takes up space

What is matter

300

Can be observed without changing the the substance

What is physical property

400

Describing methane as a gas that easily catches fire describes it's ___________ properites

What is chemical

500

New substances are formed when matter undergoes this

What is chemical change

Atoms

100

The subatomic particles of an atom

What is electron, neutron, proton

200

The atomic number represents

What is protons

300

What part of an atom changed to make an isotope?

What is neutron

400

An atom with 6 protons and 6 electron

What is carbon

500

Part of the atom that does not contribute to the mass

What is electron

Counting Atoms

100

Avogadro's Number

What is 6.02 * 10^23

200

How to you find the grams of an atoms when given moles?

What is multiply (using molar mass)

300

How do you find the grams when given atoms?

What is find moles first

400

How many grams are there in 4.50 moles of Ba(NO2)2

What is 1031.79 grams

500

How many grams are there in 7.40 moles of AgNO3

What is 1256.6 grams

Periodic Table

100

The elements are placed in order of this

What is atomic number

200

Elements are put into groups based on their

What is chemical and physical properties

300

This element is in a family by itself

What is Hydrogen

400

The number of valence electrons in the Nobel Gases

What is 8

500

This family is completely non-reactive

What is Noble Gases