Atomic Structure - Rapid Review

Atomic Structure Rapid Review

• ​Identify the parts and location of the subatomic particles.

• Explain the roles of the subatomic particles.

• Count the number of subatomic particles for any element.

Labelling

Label the atom.

Drag labels to their correct position on the image

nucleus

electron cloud

neutron

proton

electron

Categorize

Options (13)

+1 charge

determines atomic number

positively charged particle

0 charge

neutral particle

-1 charge

found in electron cloud

mass of approximately 0.0005 amu

negatively charged particle

participates in chemical reactions

p⁺

n⁰

e^-1

Organize these options into the right categories

proton

neutron

electron

• Tells you how many protons are in the nucleus.

• Unique to each element.

• Will always be the smaller of the two, may not always be on the bottom.

• In a NEUTRAL atom, the atomic number also tells you the # of electrons.

Atomic Number

• Mass Number, or the atomic mass unit, tells you the mass of the atom.

• Includes all the protons and all the neutrons added up.

• Always the larger number.

Mass Number (amu)

• Because there are different types (or isotopes) of the same element, the mass is an average.

• Average atomic mass is usually written as a decimal.

• Round this number to the nearest whole number to find the Mass Number.

• Often simply referred to as atomic mass.

Average atomic mass

Math Response

What is the mass number for phosphorus?

Type answer here

Correct Answer: 31

Deg^°

Rad

Match

Select the correct number of subatomic particle based on the nuclear symbol for Fluorine.

• # of protons

• # of neutrons

• # of electrons

9

10

9

• 9

• 10

• 9

Labelling

Label the nuclear symbol for Helium by dragging the label underneath the arrow.

Drag labels to their correct position on the image

atomic number

average atomic mass

chemical symbol

Labelling

Label the nuclear symbol for Helium by dragging the label underneath the arrow.

Drag labels to their correct position on the image

atomic number

chemical symbol

element name

average atomic mass

Three ways we can represent an atom.

​Bohr model of Carbon

​Nuclear symbol of Carbon

​carbon-12

Hyphen Notation for Carbon

Match

Match the types of representation for Nitrogen.

• nitrogen-14

Bohr Model

Hyphen notation

Nuclear Symbol

• Bohr Model

• Hyphen notation

• Nuclear Symbol