periodic table review

Intro to Atoms & The Periodic Table

​An Element

The Simplest form of a pure substance

​The Atom

​The smallest particle of an element that retains the chemical properties of an element.

​The atomic mass unit (amu) is used to mass atoms and equals 1.67 x 10-27  Kg

​Atom Composition

• ​The atom is composed of three subatomic particles

• ​Particles which are smaller than the atom

​Proton

​Charge: +1 

​

Mass: 1 amu 

​

Location: In Nucleus

​Electron

​Charge: -1 

​

Mass: 1/1836 amu ~ 0 amu

​

Location: Orbits nucleus in electron cloud

​Neutron

​Charge: 0 (neutral) 

​

Mass: 1 amu 

​

Location: In nucleus

Multiple Choice

What is the charge of a proton

• +1

• 0

• -1

Multiple Choice

What is the charge of a Neutron?

• +1

• -1

• 0

Multiple Choice

Where is the electron located?

• The nucleus

• The orbitals of the atom

• Inside a neutron

​The Periodic Table

The periodic table tells us important information about elements and atoms that make up elements.​

​Atomic Number

​The elements are numbered with whole numbers in order. 

​Atomic Number & Protons

​Atomic number always equals the number of protons in an atom.

This means that the protons are also used as the ID of an element

​

Multiple Choice

What is the atomic number of this nucleus?

• 1

• 3

• 4

• 7

Multiple Choice

What is the number of protons that the element in this image contain?

• 14

• 7

• 15

• 18

​Atomic Mass

​The other number found on the periodic table is the atomic mass

The mass of an atom of the element

​Subatomic Particles & Atomic Mass

​Because the mass of an electron is so small

We can assume that the atomic mass is equal to the number of protons and neutrons.

​Mass Number

​The mass number is the atomic mass rounded to the nearest whole number

Multiple Choice

What is the atomic number of Cu?

• 63.546

• 29

• 2

• 34

Multiple Choice

What is the mass number of Neon?

• 20.180

• 20

• 10

Match

Match the following

• A

• B

• C

• D

• E

Proton

Neutron

Electron

Shell

Nucleus

• Proton

• Neutron

• Electron

• Shell

• Nucleus

Multiple Choice

Periods are the _______ on the periodic table.

• rows

• columns

Multiple Choice

The period number tells you the number of _______ that atom has.

• energy levels

• valence electrons

• protons

• neutrons

Multiple Choice

Based on the image below, this element should be in period

• 1

• 2

• 3

• 4

Multiple Choice

Groups are the _________ on the periodic table.

• rows

• columns

Multiple Choice

The group number tells you the number of ________ that atom has.

• valence electrons

• energy levels

• electron shells

• protons

Multiple Choice

Based on the image below, this element should be in group

• 2

• 4

• 6

• 8

Multiple Choice

By looking at this picture, you can tell that these elements are both in group

• 1 (1 valence electron)

• 2 (2 valence electrons)

• 3 (3 valence electrons)

• 4 (4 valence electrons)

​Summary

​# of protons = Atomic number 

• # of electrons = # of protons = Atomic number

• # of neutrons = mass # - Atomic #  

* Mass #- rounded atomic mass (whole #)

Multiple Choice

What does the 6 represent?

• atomic mass

• atomic number

• element name

• chemical symbol 

Multiple Choice

What does 12.011 represent?

• atomic mass

• atomic number

• element name

• chemical symbol 

Multiple Choice

What is the name of this element?

• Helium

• Rubidium

• Hydrogen

• Mercury

Multiple Choice

Which element has an atomic number of 1?

• Lithium

• Oxygen

• Hydrogen

• Francium

Multiple Choice

The fluorine atom has an atomic number of

• 19

• 9

Multiple Choice

What is the mass number and atomic number ?

• Mass number = 7, atomic number = 14

• Mass number = 14, atomic number = 7

Labelling

Match the following subatomic particles to their correct place in the atom.

Drag labels to their correct position on the image

Neutron

Proton

Nucleus

Electron

Match

Match the following subatomic particles to their correct charge.

• Proton

• Neutron

• Electron

Positive

Neutral

Negative

• Positive

• Neutral

• Negative

​Ionic vs. Covalent Bonding

Multiple Choice

A bond between a metal and a nonmetal is called a(n)

• covalent bond

• ionic bond

• metallic bond

• transfer bond

Multiple Choice

A bond between a nonmetal and a nonmetal is called a(n)

• covalent bond

• ionic bond

• metallic bond

• transfer bond

Multiple Choice

Calcium Oxide, CaO

• Covalent Bond

• Ionic Bond

Multiple Choice

The transfer of Valence electrons from a metal to a non metal is known as

• Covalent Bonding

• Metallic bonding

• Molecular bonding

• Ionic Bonding

Multiple Choice

Covalent compounds

• Share electrons

• transfer electrons

• None

• conduct electricity

Multiple Choice

Identify the following compound as ionic or covalent: CF₄

• ionic

• covalent

Multiple Choice

Identify the following compound as ionic or covalent: MgO

• ionic

• covalent