The Atom {2}

Question 1

Define:

Proton?

Answer 1

Positively Charged Particles in atom (Nucleus)

Question 2

Define:

Neutron?

Answer 2

Neutrally charged particles in an atom (Necleus)

Question 3

Define:

Electron?

Answer 3

Negatively charged Particles in an atom (Nucleus)

Question 4

Define:

Mass Number?

What letter symbol represents it?

Answer 4

Sum of the number of protons and the number of neutrons in an atom (A)

Question 5

Define:

Atomic Number?

What letter symbol represents it?

Answer 5

Number of protons in the neclues of an atom (Z)
If stable, atomic number is also the number of electrons

Question 6

Define:

Hypothesis?

Answer 6

A tentative interpretation or explanation of the observations

Question 7

Define:

Amu?

Answer 7

Atomic Mass Unit
1 proton or neutron is approximately 1 amu

(1/12 the mass of a Carbon atom containing 6 protons and 6 neutrons)

Question 8

Define:

Theory?

Answer 8

A model for the way nature is and tries to explain not merely what nature does but why

Question 9

Define:

Scientific Law?

Answer 9

A brief statement that summarizes past observations and predicts future ones

Question 10

Define:

Ion?

Answer 10

Atoms that lose or gain electrons and become charged particles

Question 11

Define:

Isotope?

Scie

Answer 11

Atoms with the same number of protons but different number of neutrons
(A/Z)X -> Symbols of an Isotope

Question 12

Define:

Law of Conservation of Mass?

Who?

Answer 12

In a chemical reaction, Matter is neither created nor destroyed

Made by Antoine Lavoisier

Question 13

Define:

Observation?