science study guide

Who's atomic theory is this?

1) Elements consist of indivisible small particles.

2) All atoms of the same element are identical; different elements have different types of atom.

3) Atoms can neither be created nor destroyed.

• daltons

• rutherfords

• Bohrs

• Thomson

Who's theory is this?

An atom consists of positively charged particles concentrated at the center known as the nucleus.

• Bohrs

• Thomsons

• Rutherfords

• Dalton

Who's theory is this?

electrons orbit the nucleus at fixed energy levels.

• Thomson

• Bohrs

• Daltons

• Rutherfords

Who's atomic theory is this?

All atoms contain tiny negatively charged subatomic particles or electrons.

• Rutherfords

• Daltons

• Bohrs

• Thomsons

what is the atomic number for Oxygen

• 8

• 2

• 1

• 17

what is the atomic number for gold

• 9099999999 trillion gazzilion BILLION DOLLARS

• 89

• 79

• 76

what is the atomic number for mercury

• 16

• 80

• 90

• 100

what is the chemical symbol for magnesium

What is the chemical symbol for Hydrogen

What is the chemical symbol for Nitrogen