Chemistry

Question 1

Atom

Answer 1

The smallest component of a chemical element

Question 2

Matter

Answer 2

The substance of which any physical object is composed except energy

Question 3

Atomic Particles

Answer 3

One of the particles of which an atom is constituted, examples are Proton, Neutron, and Electron

Question 4

Electron

Answer 4

An elementary particle that is found in the shell of an atom and is a fundamental constituent of matter, having a negative charge and an AMU mass of 0.000549

Question 5

Neutron

Answer 5

An elementary particle having no charge, a particle that is found in the nucleus of an atom and has an AMU mass of approximately 1

Question 6

Proton

Answer 6

An elementary particle that is found in the nucleus of an atom. It has an AMU mass of approximately 1 and a positive charge.

Question 7

AMU

Answer 7

An abbreviation for Atomic Mass Unit

Question 8

Electron Shell

Answer 8

The orbit of electrons that move around the nucleus where the protons and neutrons are found.

Question 9

Element

Answer 9

Defined by the number of protons that a substance possesses.

Question 10

Compound

Answer 10

A substance formed when two or more elements are chemically bonded together.

Question 11

Periodic Table

Answer 11

A table of chemical elements arranged in order of atomic number. The periodic table consists of 118 elements.

Question 12

Atomic Number

Answer 12

A number used to indicate how many protons an element possesses in the nucleus of the atom

Question 13

Atomic Mass

Answer 13

The mass of an atom of a chemical element which is expressed in Atomic Mass Units (AMU)