Chemistry #1

Question 1

Atom

Answer 1

The smallest unit of an element

Question 2

Nucleus

Answer 2

It is the center of atoms. It is composed of Neutrons and contains most of an atom’s mass

Question 3

Proton

Answer 3

Is a positively charged particle and is found within an atomic nucleus

Question 4

Neutron

Answer 4

Is an uncharged particle and is found within an atomic nucleus

Question 5

Electron

Answer 5

Is a negatively charged particle and is located in shells that surround an atom’s nucleus

Question 6

Molecule

Answer 6

Is a group of atoms together which makes the smallest unit of a chemical compound

Question 7

Quark

Answer 7

Makes up particles

Question 8

Alkali Metals

Answer 8

Alkali matals are the metals in group 1 of the periodic table. They act aggressively to anything.

Question 9

Cations

Answer 9

Cations are atoms that result in a positive charge after a number of electron has been removed from a shell

Question 10

Anions

Answer 10

Ations are atoms that result in a negative charge after a number of electrons have been added on to a shell.

Question 11

Noble Gases

Answer 11

Noble gases are gases that are unreactive. They include: Helium, Argon, Krypton, Xenon, Neon and Radon.

Question 12

Valence Shells

Answer 12

The outermost shell of an atom (shells are in an atom)

Question 13

Valence Electron

Answer 13

The electron in the outermost shell in an atom

Question 14

Octet

Answer 14

A group of 8 electrons in a shell

Question 15

Ions

Answer 15

an atom or molecule with an electrical charge due to a loss or gain of electron(s).

Question 16

Alchemist

Answer 16

An olden day scientist who mixed chemicals, they tried to change ordinary metals in to gold and also tried to predict the future.

Question 17

Element

Answer 17

Pure substance made up of only one type of atom

Question 18

Isotopes

Answer 18

2 or more forms of the same element with equal number of protons, but different number of neutrons in the nucleus