Atoms and reactions

Question 1

Structure of the atom

Answer 1

Atoms are tiny particles that consist of a nucleus, containing protons and neutrons, with electrons surrounding the nucleus

Question 2

protons

Answer 2

Positive charged subatomic particles

Question 3

electrons

Answer 3

Negatively charged subatomic particles

Question 4

neutrons

Answer 4

Neutrally charged subatomic particles.

Question 5

ion

Answer 5

Charged atom.

Question 6

why do elements form ions of a specific charge

Answer 6

When atoms lose or gain electrons in order to have a full outer valence shell.

Question 7

Structure of mono-atomic ions + electron arrangement of it

Answer 7

a single atom that has a different number of protons and electrons

Question 8

reactants meanings

Answer 8

a substance that enters into and is altered in the course of a chemical reaction.

Question 8

products meaning

Answer 8

a substance that is present at the end of a chemical reaction

Question 9

point of balancing a chemical equation

Answer 9

to equate the number of atoms of the reactants to the number of atoms of the products.

Question 10

biology

Answer 10

study of living organisms

Question 11

phyisics

Answer 11

Matter, its motions and behaviours through time and space

Question 12

chemistry

Answer 12

study of conservation of matter and the material world

Question 13

mixture

Answer 13

Contains 2 or more substances but not chemically combined

Question 14

compound

Answer 14

Substance made up of atoms that are chemically combined.