Atomic Theory Scientists
Atomic Structure 1
Atomic Structure 2
Atomic Structure 3
Electrons and Light
100
This scientist discovered the electron.
Who is JJ Thomson?
100

This subatomic particle has a positive charge.

What is a proton?

100

Atoms of the same element with different numbers of neutrons.

What is an isotope?

100

This element has 20 protons.

What is Calcium?

100

This is what an electron emits when going from a high energy level to a low energy level.

What is a photon?

200

This scientist proposed that electrons orbit the nucleus in fixed paths at fixed energy levels just like planets orbit the sun.

What is Niels Bohr?

200

This subatomic particle's main contribution to the atom is to give the atom more mass.

What is a neutron?

200

The atomic number is the same as the number of this particle.

What is a proton?

200
This is the mass number of Nitrogen when it has 8 neutrons.
What is 15?
200

The electron is in this state when it is energized by light and jumps up to a higher energy level.

What is the excited state?

300

This scientist described the atom as the smallest, most indestructible piece of matter.

Who is John Dalton?

300

This subatomic particle gives an atom its volume.

What is an electron?

300

Record the hyphen notation of an atom of Oxygen that has 10 neutrons.

What is Oxygen-18?

300

What is the average atomic mass of Rb?

What is 85.47 g/mol?

300

The electron is said to be in this state when it falls back down after releasing energy.

What is the ground state?

400

Which food relates to Thomson's theory. 

What is soup or plum pudding. 
400

These 2 subatomic particles give the atom its mass.

What are protons and neutrons?

400

This is the formula for mass number.

What is # of protons + # neutrons?

400

Explain how it is possible to have three different forms of hydrogen.

What is they are isotopes of one another?

400

Violet light has [ longer  or  shorter ] wavelengths than red light?

shorter

500

This theory says that electron are in electron clouds or orbitals around the nucleus, rather than in fixed orbits

What is the modern theory

500

This subatomic particle has virtually no mass.

What is an electron?

500

Magnesium-25 has this number of neutrons.

What is 13 neutrons?

500

How is ion formed?

Ion is formed when a neutral atom loses or gains electrons

500

Violet light has [more or less] energy than red light. 

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