Components, Structure, and Identification of the Atom

Question 1

What is the mass, charge and location within the atom of a proton?

Answer 1

mass = 1.00727 AMU
charge = +1
location = nucleus

Question 2

What is the mass, charge and location within the atom of a neutron?

Answer 2

mass = 1.00866 AMU
charge = 0
location = nucleus

Question 3

What is the mass, charge and location within the atom of an electron?

Answer 3

mass = 0.00055 AMU
charge = -1
location = shell outside nucleus

Question 4

Define Atomic Mass Unit (AMU)

Answer 4

Unit of mass used to define the weight of atoms
Equal to 1/12 of the carbon-12 atom

Question 5

Define nucleon

Answer 5

protons and neutrons are “nucleons”

Question 6

Define nuclide

Answer 6

a distinct kind of atom or nucleus characterized by a specific number of protons and neutrons

Question 7

Define isotope

Answer 7

Atoms of the same
element (those with same number of protons)
with different numbers of neutrons are called
isotopes of the element.

Question 8

STATE the two terms that represent the method by which atoms and subatomic particles are
measured

Answer 8

Atomic mass units/AMU and atomic number

Question 9

How do we depict the element symbol in the “A/Z/X” notiation?

Answer 9

The letter X is used for the element

Question 10

How do we depict the atomic mass number in the “A/Z/X” notiation?

Answer 10

The letter A is used for the atomic mass number (protons and neutrons added together)

Question 11

How do we depict the atomic number in the “A/Z/X” notiation?

Answer 11

The letter Z is used for the atomic number (protons only)