Atomic Structure and Ions

Question 1

What is an Atomic Number?

Answer 1

The amount of protons there are in an atom of an element.

Question 2

What does it mean when an Atom is neutral?

Answer 2

An atom must also have an equal amount of negatively charged electrons and positively
charged protons to balance each other.

Question 3

What is a mass number?

Answer 3

The mass number of an atom is equal to the number
of protons plus the number of neutrons.

Question 4

What is Nuclide Notation?

Answer 4

Chemists use nuclide notation to show the numbers of subatomic
particles in an atom or ion.

e.g, the mass number is shown at the top,
the atomic number is shown at the bottom.

Question 5

What is the Electron arrangement?

Answer 5

Electrons are arranged in shells or energy levels.

Question 6

What is the max number of Electrons in the outer shell?

Answer 6

The max number of electrons in the outer shell is 8.

Question 7

What is the same for atoms of all the elements in the
one group of the periodic table?

Answer 7

Amount of valence electrons.

Question 8

What is an isotope of an element?

Answer 8

Isotopes of an element have the same number of protons
but a different number of neutrons. So isotopes have the
same atomic number but a different mass number.

Question 9

What is Relative Atomic Mass? (RAM)

Answer 9

The relative atomic mass of an element is the average
mass of all the isotopes present taking into account the
relative abundance of each.

Question 10

What is an ion?

Answer 10

An ion is an atom or molecule with a net electrical charge (Positive or Negative).