Whose atomic model said electrons orbit the atom like planets orbit the sun (planetary model)

• Einstein

• Thomson

• Rutherford

• Dalton

What are the 3 particles that make-up the atom?

• protons, neutrons, and isotopes
• neutrons, isotopes, and electrons
• positives, negatives, and electrons
• protons, neutrons, and electrons

Tags

NGSS.MS-PS1-1

Rutherford's gold foil experiment provided evidence that...

• negative and positive charges are spread evenly throughout the atom.
• alpha particles have a positive charge.
• gold is not a dense as previously thought.
• there is a dense positively charged nucleus at the center of an atom.

What does the nucleus of an atom contain?

• Electrons and neutrons
• Protons and neutrons
• Neutrinos and positrons
• DNA and RN

Tags

NGSS.MS-PS1-1

J.J. Thompson discovered the ____________. His model is called the raisin bun/plum pudding model. 

• proton
• electron
• neutron
• nucleus

Ernst Rutherford discovered that the atom is

• Composed of mostly empty space with negative electrons surrounding a positive nucleus
• A highly dense sphere of positive
• A highly dense sphere of a negative space
• Composed mostly of empty space with positive electrons surrounding a negative nucleus

What is the atomic number of an element with 12 protons, 13 neutrons and 12 electrons?

• 12
• 13
• 25
• 24

Tags

NGSS.MS-PS1-1

What are the three types of radioactivity?

• Sedimentary, Metamorphic, Igneous.
• Alpha, Beta, Gamma.
• Cardiac, Smooth, Skeletal. 
• Verbal, Situational, Dramatic.

Tags

NGSS.HS-PS1-8

Beta particles are...

• negatively charged
• no charge
• back at it again with the white vans
• positively charged

Tags

NGSS.HS-PS1-8

Which type of nuclear radiation is being emitted here?

• Alpha
• beta
• gamma 
• none

Tags

NGSS.HS-PS1-8