the atomic theory

Front

A chemical compound always has the same elements in the same proportions by mass regardless of the source of the compound.

Back

the law of definite proportions.

Front

Which subatomic particle has a charge of +1? Options: electron, neutron, proton, meson

Back

proton

Front

Which particle has the least mass? Options: electron, neutron, proton, All have the same mass.

Back

electron

Front

What subatomic particle did Thomson discover?

Back

electron

Front

Mass is neither created nor destroyed, this is called?

Back

law of conservation of mass

Front

Which one of Dalton's postulates is wrong? Options: the atom can't be subdivided , the atoms of the same element have the same properties , atoms can be rearranged to create a compound, atoms are the smallest particles

Back

the atom can't be subdivided

Front

Isotopes

Back

same atomic number different atomic mass

Front

Subatomic particles with a negative charge

Back

Electrons

Front

Subatomic particles that are neutral in charge

Back

Neutrons

Front

Where are electrons likely to be found as they travel around the nucleus?

Back

Electron Cloud