Particles
Model of the atom
Electron Configuration
Identifying Elements
Ions and Isotopes
100
Negatively charged particles

What are electrons?

100
Creator of atomic theory. First model based on experimental evidence. 

Who is John Dalton? 

100

All elements in group 13 have ________ valence electrons.

What is 3?

100
This element is in group 1 but is considered a non-metal.

What is hydrogen?

100

Isotopes are atoms with the same number of ________ and different number of _________.

What is protons? What is neutrons?

200

These particles make up the mass of an atom

What are protons and neutrons?

200
Rutherford created this model using a gold foil and a cathode ray. This model proved ______.

What is atoms have a dense positive nucleus and are mostly empty space?

200

An excited state for potassium. 

What is

2-8-7-2

2-7-8-2

1-8-8-2

(not limited to these answers)

200

This group of elements does not react with other elements.

What are noble gasses? (group 18)

200

An ion is a __________ particle.

What is charged?

300

The number of this particle can be found by subtracting the atomic number from the atomic mass

What are neutrons?

300

The quantum mechanical model states that electrons exist in sub shells/orbitals. The letters that represent these orbitals are ______.

What is s, p, d and f?

300

The electron configuration for an indium ion

What is 2-8-18-18?


300

This element is found in period 4 and group 7. (answer must be full name)

What is Manganese?

300
Metals tend to be ________(charged) ions known as _______. 

What is positive charged ions known as cations?

400

These particles are found in orbitals

What are electrons?

400

This model explained an atom as uniform, being positive with areas of negativity. 

What is the Plum Pudding model (JJ Thompson)?

400
The electron configuration for a P+3​​​​

What is 2-8-2?

400

These elements are metalloids with 4 "shells" in their electron configuration. (Answer needs to be full element name)

What are germanium and arsenic?

400

An ion of Ga+3 will have _____ total electrons.

What is 28 electrons?

500

This specific type of particle are responsible for chemical properties (they determine how chemicals will react)

What are valence electrons?

500

The amount of orbitals within the p and f sub shells. (there will be two numbers in the answer)

What is 3 (p-subshell) ? and what is 7(f-subshell)?

500

Some electron ion configurations can be stable even though there is not an octet because ______.

What is the orbital is full?

("the 1st shell only needs 2 electrons to be filled" is accepted but orbital is a better answer as it accounts for shells with 18 as well)

500

This element antimony has this atomic number and symbol.

What is 51? What is Sb?
500

The average atomic mass of Silicon

Si-28         92.18%

Si-29.        4.70%

Si-30.        3.12%

What is 28.11 amu or grams?

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