Unit 4 Review - ATOMIC STRUCTURE & Theory

John Dalton's atomic theory stated that atoms are

The number of protons in an atom determines it's

John Dalton's theory stated that _?_ occur when atoms are separated, joined, or rearranged?

subatomic particle with no charge

The nucleus of the atom contains most of the atom's

How many protons does hydrogen have?

What is the charge of an atom's nucleus?

smallest particle of element to retain identity during a chemical reaction

positively charged subatomic particle

Atoms of the same element have the same number of _?_.

Rutherford concluded that atoms are composed mostly of

elements are arranged into groups based on set of repeating properties

This structure is positively charged with a high density:

Atoms of the same element can have different numbers of

negatively charged subatomic particle

number of protons

John Dalton's theory claimed that all elements are composed of