Chemistry Chapter 4 Review - Atomic Structure

An arrangement of elements according to similarities in their properties is...

What is a vertical column called in the periodic table?

Which of the following equals one atomic mass unit?

Isotopes of the same element have different

Who was the first scientist to suggest the idea of atoms?

What is the smalles particle of an element that retains all of its properties?

The part of an atom that contains protons and neutrons

The sum of protons and neutrons in an atom equals

a subatomic particle with no charge

The atomic number of an element is equal to the total number of .....

A negatively charged particle

What is the unit used to measure weighted average atomic mass?

All atoms of the same element have the same

A positively charged particle

What does the number 84 in krypton-84 represent?

Who conducted experiments to determine the quantity of charge carried by an electron?

Dalton's atoic theory included which idea?

1/12 the mass of a carbon atom that has 6 protons and 6 neutrons

Isotopes of the same element have different

Atoms with the same number of protons, but has a different number of neutrons