Chemistry
Atoms
Energy
Bonds
Ionic Bonding
100

Anything that has mass and occupies space

What is matter?

100
The smallest unit of an element that still retains the properties of an element.
What is an atom?
100
The capacity to cause change.
What is energy?
100
The attraction that holds two elements together.
What is a chemical bond?
100
A charged atom (molecule)
What is an ion?
200

A substance that cannot be broken down any further by a chemical reaction.

What is an element?

200
Neutrons and protons form this portion of an atom.
What is the nucleus?
200

The energy that matter possesses because of its location or structure

What is potential energy?

200

The sharing of valence electrons by two elements

What is a covalent bond?

200
A positively charged ion
What is cation?
300

A substance consisting of two or more elements in a fixed ratio.

What is a compound?

300
The unit of measurement for the mass of a proton or neutron
What is a dalton?
300
An electron's state of potential energy is called its energy level, or this...
What is electron shell?
300
Two or more atoms held together by a covalent bond
What is a molecule?
300
Negatively charged ion
What is an anion?
400

An element required by an organism in very minute amounts.

What is a trace element?

400
The sum of the number of protons and neutrons in an atom.
What is the mass number?
400
Electrons in the outermost shell of an atom.
What is valence electrons?
400
The sharing of one pair of valence electrons.
What is a single bond?
400
The attraction between an anion and a cation
What is an ionic bond?
500
Calcium, phosphorus, potassium, and sulfur make up this remaining percent of living matter?
What is 4%?
500
This type of atom decays spontaneously and give off massive amounts of energy
What is a radioactive isotope?
500
An element that has its outermost shell completely full is considered this...
What is inert or unreactive?
500
The sharing of two pairs of valence electrons
What is a double bond?
500
These compounds are formed via ionic bonds
What is salts?
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