Science 8 - (3Q - Pretest#2)

States that matter could be divided and subdivided into smaller and smaller pieces without limit.

• Continuity of Matter

• Discontinuity of Matter

• Dalton's Atomic theory

• Rutherford's gold foil experiment

They are also called elementary particle, any of various self-contained units of matter or energy that are the fundamental constituents of all matter.

• Atom

• Subatomic particles

• Molecules

• Isotopes

They are members of a family of an element that all have the same number of protons but different numbers of neutrons.

• Atom

• Subatomic particles

• Molecules

• Isotopes

It is a negatively charged subatomic particle.

• Electron

• Proton

• Neutron

• Quark

It is a stable subatomic particle that has a positive charge.

• Electron

• Proton

• Neutron

• Quark

A subatomic particle that has no electric charge.

• Electron

• Proton

• Neutron

• Quark

It is the proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of every atom of that element.

• Number of electrons

• Number of neutrons

• Atomic Mass

• Atomic Number

It is the sum of the numbers of protons and neutrons present in the nucleus of an atom.

• Number of electrons

• Number of neutrons

• Atomic Mass

• Atomic Number

An English chemist, physicist and meteorologist and he is best known for introducing the atomic theory into chemistry.

• Ernest Rutherford

• Eugen Goldstein

• Robert millikan

• John Dalton

A British physicist who discovered that the atom is mostly empty space surrounding a massive nucleus.

• Ernest Rutherford

• Eugen Goldstein

• Robert millikan

• John Dalton