Atomic Structure

Question 1

Describe neutrons, protons and electrons in terms of their location in the atom, charge
and mass

Answer 1

Neutrons have a negative charge and are in the center and have a mass of 1, protons have a positive charge and have a mass of 1 and electrons have a negative charge and have a mass of 1/1840

Question 2

Define the atomic number of an atom

Answer 2

Atomic number is on the top left

Question 3

Define the mass number of an atom

Answer 3

On the top right

Question 4

Use the atomic number and mass number of a given atom to determine the number of
protons and neutrons in the atom

Answer 4

The atomic number is how many protons it has and the mass minus the protons is how many neutrons and atom have

Question 5

Describe how in the Bohr model of the atom, electrons exist in energy levels called shells around the nucleus

Answer 5

Traveling in circular orbitals at specific distances from the nucleus

Question 6

Calculate the maximum number of electrons that can fit on each shell using 2n2

Answer 6

2 times (periods) squared

Question 7

Draw Bohr models for the first 20 elements

Answer 7

Drawn a atom

Question 8

Write electron configurations for the first 20 elements

Answer 8

Be able to tell how many electrons there are in a atom

Question 9

Identify the number of valence electrons for any atom

Answer 9

Use the groups to tell that