Quiz Chp. 3.1 Intro to Atoms

The positively charged particle in an atom's nucleus is the

• proton
• photon
• neutron
• electron

An element's identity can be determined by its

• number of neutrons
• electron configuration
• atomic mass
• atomic number

The smallest particle an element can be divided into is the

• molecule
• cell
• atom
• proton

The model of the atom that described electrons scattered throughout a ball of positive charge was proposed by

• J.J. Thomson
• Max Planck
• Niels Bohr
• Ernest Rutherford

Match the following

• atomic

• An element's ___ number tells the number of protons in its nucleus

• electrons

• the ___ model of the atom describes the location of electrons as specific orbits around the nucleus

• Bohr

• Negatively charged particles in an atom are called __

Tags

NGSS.MS-PS1-1

Match the following

• Mass

• Atoms with the same number of protons but different numbers of neutrons are called __

• model

• An object that helps explain ideas about the natural world is called a __

• isotopes

• The sum of the protons and neutrons in an atom is called the __ number

Tags

NGSS.MS-PS1-1