The Periodic Table
Chemical Reactions & Equations
Physical v. Chemical
Elements, Compounds, & Mixtures
Chemistry Miscellaneous
100

The horizontal rows on the periodic table

What are periods?

100
The new substances created after a chemical reaction

What are products?

100

These can include boiling point, odor, color, and luster

What are physical properties?

100

When there is only one type of atom present

What is a pure element?

100

There are 118 of these found on the periodic table

What are elements?

200

The most stable family of elements on the periodic table

What are noble gases?

200

When 2 or more elements combine to make a more complex substance

What is synthesis?

200

The type of change that always forms a new substance

What is chemical change?

200

A pure substance containing two or more kinds of elements

What is a compound?

200

The component of an atom with a positive charge

What are protons?

300

The element in period 4 with 7 valence electrons

What is bromine?

300

When balancing an equation, these numbers cannot be changed

What are subscripts?

300

An example of this could be fruit rotting

What is a chemical property?

300

A uniform mixture that cannot be separated by physical means

What is homogeneous?

300

These are represented by the dots in a Lewis Dot structure

What are valence electrons?

400

The category of elements that are good conductors of electricity

What are metals?

400

When 1 element replaces another one in a compound during a chemical reaction

What is single replacement?

400

The type of change that can sometimes be undone

What is physical change?

400

An example of this could be a bowl of Lucky Charms

What is a heterogeneous mixture?

400

The type of bond between a metal element and a non-metal element

What is an ionic bond?

500

This is needed to calculate protons, neutrons, and electrons

What is the atomic number?

500

A type of chemical reaction that requires heat/energy to break bonds

What is an endothermic reaction?

500

A type of chemical change indicated by metal turning reddish-brown

What is rust?

500

A homogeneous mixture that includes liquid/water

What is a solution?

500

In a Bohr model, this shell has a maximum of 8 electrons

What is the second shell?