8F Revision: The Periodic Table

Atoms can be divided into smaller particles.

Atoms are solid spheres that cannot be divided.

Atoms contain protons, neutrons, and electrons.

Atoms are mostly empty space.

Atoms of the same element are identical in mass and properties.

Atoms can combine to form compounds.

Atoms can be created and destroyed.

Chemical reactions involve the rearrangement of atoms.

Elements.

Molecules.

Atoms.

Ions.

Have the same mass and size.

Have different masses and sizes.

Are indivisible but can be changed into one another.

Do not exist in nature.

Identical in mass and properties.

Different from each other.

Made of smaller particles.

Able to change into atoms of other elements.

Atoms are destroyed during chemical reactions.

Atoms are rearranged during chemical reactions.

Atoms turn into energy during chemical reactions.

Atoms combine with energy to form new substances.

Random ratios.

Specific ratios.

Equal ratios.

No ratios at all.

Empty spaces with a nucleus in the center.

Indivisible spheres.

Particles with neutrons and protons in the core.

Having a dense center with electrons orbiting.

Atoms can be divided into smaller particles.

Atoms are solid spheres that cannot be divided.

Atoms contain protons, neutrons, and electrons.

Atoms are mostly empty space.

Atoms of the same element are identical in mass and properties.

Atoms can combine to form compounds.

Atoms can be created and destroyed.

Chemical reactions involve the rearrangement of atoms.

Elements.

Molecules.

Atoms.

Ions.

Have the same mass and size.

Have different masses and sizes.

Are indivisible but can be changed into one another.

Do not exist in nature.

Identical in mass and properties.

Different from each other.

Made of smaller particles.

Able to change into atoms of other elements.

a) Atoms are destroyed during chemical reactions.

b) Atoms are rearranged during chemical reactions.

c) Atoms turn into energy during chemical reactions.

d) Atoms combine with energy to form new substances.

a) It explained chemical reactions.

b) It failed to explain the existence of charged particles.

c) It described how atoms bond to form compounds.

d) It proposed that atoms can combine in specific ratios.

a) Random ratios.

b) Specific ratios.

c) Equal ratios.

d) No ratios at all.

a) Empty spaces with a nucleus in the center.

b) Indivisible spheres.

c) Particles with neutrons and protons in the core.

d) Having a dense center with electrons orbiting.

a) They are hard and have high melting points.

b) They are soft and have low melting points.

c) They do not react with water.

d) They form negative ions.

a) They form an acid.

b) They form an alkaline solution and hydrogen gas.

c) They do not react with water.

d) They dissolve without reacting.

a) Increases.

b) Decreases.

c) Stays the same.

d) Disappears.

a) Magnesium

b) Calcium

c) Potassium

d) Iron

a) Reactivity increases.

b) Reactivity decreases.

c) Reactivity stays the same.

d) Reactivity disappears.

a) Metal oxides

b) Salts

c) Water

d) Acids

a) Chlorine

b) Argon

c) Sodium

d) Bromine

a) They decrease.

b) They increase.

c) They remain constant.

d) They fluctuate.