Electrons and Energy Levels
Bonds and Formulas
Types of Chemical Reactions
Valence Electrons
Acids and Bases
100

The atomic number of an element equals the number of this.

Proton

100

When a metal atom transfers one or more valence electrons to a nonmetal atom, you get this kind of bond.

Ionic Bond

100

Two reactants react to form one product.

Synthesis

100

Bonds form because atoms are seeking this.

Stability

100

A solution that has an excess of H+ ions.

Acid

200

The exact position of this cannot be determined because they are in constant motion.

Electron

200

Metallic bonds form between what two types of atoms?

Metal and Metal Atoms

200

One reactant reacts to form two products.

Decomposition

200

The first level of electron shell holds 2 electrons to be stable.  Th 2nd through 7th need this many to be stable.

Eight

200

A solution that has an excess of OH- ions and is also called alkali or alkaline

Base

300

Hydrogen has this many valence electrons.

One

300

Chemical symbols and numbers represent the elements and the numbers of each atom that makes up a compound.

Chemical Formula

300

This type of reaction must always have oxygen as a reactant.

Combustion

300

In the outermost shell of an atom, electrons can be shared, given or received to be this.

Happy Atoms- Stable 

300

Power of hydrogen is better known as this.

pH

400

An outermost electron of an atom that participates in chemical bonding.

Valence Electron

400

In methane, CH4, has one carbon atom and 4 of this atom.

Hydrogen

400

A chemical reaction in which an element and compound react to form a different element and compound.

Single-Replacement Reaction

400

When valence electrons are shared the bond is this type of bond is weaker than ionic bonding.

Covalent Bond

400

Lots of H+ ions, the pH is very low which indicates it is this on the pH scale.

Acidic

500

Chlorine is an example of an element that has 7 valence electrons, an element from this group would bond well with it.

Group 1 or the alkali metal group

500

2 atoms share 2 pairs of valence electrons.

Double Covalent Bond

500

Chemical reactions always involve this.

The formation of a new substance.

500

The electrons __________ from the nucleus of an atom have the least amount of energy.

Furthest

500
  • Ammonium hydroxide – glass cleaner

  • Aluminum hydroxide – antacids, deodorants

  • Magnesium hydroxide – laxatives, antacids

Bases