Atoms 9th

Structure of atoms

100

Neutral particle of the atom 

Neutron

200

Name of the unit of measure of the mass of a proton

Atomic Mass Unit (amu)

300

All atoms of the same element have the same amount of what?

Protons

400

This is where electrons can be located outside the atom surrounding the nucleus 

Energy levels (Energy shells)

500

Atoms have the same amount of these particles, making them neutrally charged overall

Protons and electrons

Structure of atoms

100

This is where neutrons and protons are found

Nucleus

200

What is the atomic mass of an atom?

The amount of protons and neutrons of an atom

300

What is the atomic number of an atom?

The amount of protons in the nucleus of an atom

400

Relative mass of a proton and/or neutron of an atom

1 amu

500

Relative mass of an electron of an atom

1/2000 amu (or practically 0 amu)

Discovering the atom

100

Philosopher who proposed the idea of an atom as a indivisible ball

Democritus

200

Scientist who proposed the idea of the atom as an indivisible ball which make up all matter

Dalton

300

Scientist who discovered the existence of electrons

Thomson

400

How does Rutherford's model compare with Thomson's?

Rutherford model has a nucleus and in Thomson model looks like a chocolate-chip cookie

500

What is the smallest subatomic particle that was theorized in the 60's but confirmed until 2012?

Higgs Boson

Experiments and atoms

100

What can be used to understand new information, like results of experiments?

Analogies 

200

Who didn't use any experiment to prove what he proposed about the existence of atoms?

Democritus 

300

What did the cathode-ray experiment proved?

The existence of electrons

400

What did the gold-foil experiment proved about the atoms?

That atoms are mostly empty space with electrons surrounding the nucleus.

500

Name of the machine that help prove the existence of the Higgs boson?

LHC (Large Hadron Collider)

Isotopes

100

What is the difference between an atom and isotope of the same element?

They have the same number of protons (atomic number) but different number of neutrons (atomic mass)

200

If an atom gets or loses a neutron, what would change, its atomic mass or atomic number?

Atomic mass

300

In the hyphen notation, the name of the element is written and then a hyphen followed by what?

The atomic mass of the isotope

400

What do you get when you subtract the number of protons from the atomic mass of an isotope?

The number of neutrons of the isotope

500

What is gotten by multiplying the atomic mass of an isotope times its abundance percentage of an specific element?

The average atomic mass of the element