PS Unit 2 Review

​Unit 2 Review

By Danielle Mortimore

Shows patterns in the properties of elements
Periods = number of levels
Groups = number of valence electrons
Elements in the same group have A LOT in common

Periodic Table

Multiple Choice

What does the C represent?

• atomic mass

• atomic number

• element name

• chemical symbol

Multiple Choice

Metals are found on the ______________ side of the periodic table.

• nonmetals

• left

• right

• metals

Multiple Choice

What does the 6 represent?

• atomic mass

• atomic number

• element name

• chemical symbol

Multiple Choice

What element has 3 energy levels and 5 valence electrons?

• P (Phosphorus)

• Gallium (Ga)

• Tennessine (Ts)

• Francium (Fr)

• Lithium (Li)

Multiple Choice

What element is in group 11 and period 6?

• Helium (He)

• Tin (Sn)

• Calcium (Ca)

• Oganesson (Og)

• Gold (Au)

Multiple Choice

What element is in group 2 and period 4?

• Helium (He)

• Tin (Sn)

• Calcium (Ca)

• Oganesson (Og)

• Gold (Au)

Multiple Choice

Who invented the Periodic Table?

• Mendeleev

• Bohr

• Lewis

• Democritus

Change in form/appearance without changing composition.
Nothing new is being made

​​Physical Changes

Substance changes into a new substance with new properties.
Something new/different is being made
The atoms are rearranged to create something differentf

​​Chemical Changes

Multiple Choice

This change is a

• chemical reaction

• physical change

• musical change

• Ice Ice baby

Multiple Choice

How is a chemical change different from a physical change?

• there is no difference

• a physical change creates a new substance

• a chemical change creates a new substance

Multiple Choice

Is burning wood a chemical or physical change?

• chemical
• physical

Multiple Choice

A precipitate is a ___________ that forms when 2 liquids react together.

• solid

• liquid

• gas

• plasma

Multiple Choice

Is glass breaking a chemical or physical change?

• chemical
• physical

Multiple Choice

Is a a rusting bicycle a chemical or physical change?

• chemcial
• physical

Multiple Choice

Is melting ice a chemical or physical change?

• chemical
• physical

Multiple Choice

Is spoiling food a physical or chemical change?

• phyiscal
• chemical

Multiple Choice

Salt dissolves in water

• physical Change
• chemical change

Multiple Choice

Which is a chemical change?

• freezing fruit juice
• slicing a potato
• boiling water
• copper metal turning green

Multiple Choice

When mixing milk and vinegar, a white, chunky, solid substance is formed. What has occurred?

• Physical change: state of matter

• Chemical change: precipitate

• Physical change: freezing

• Chemical change: new gas

Multiple Choice

Boiling Water

• Physical Change

• Chemical Change

Multiple Choice

True or False: a physical change may produce a new substance.

• True
• False

Multiple Choice

Choose the best description below for the image

• physical change

• chemical change

Solid: fixed volume and shape

Liquid: fixed volume and not fixed shape

Solid & Liquid

Volume changes based on the container
Naturally spreads out in a room
Lots of energy

Gas

Similar to a gas, except the atoms have so much energy, the electrons escape from the atom
This causes plasmas to glow

Plasma

Multiple Choice

In which state of matter are the particles least able to move?

• A

• B

• C

Multiple Choice

Which of these three states represents a liquid?

• A

• B

• C

Match

Match the following Phase Changes

• Melting

• Condensation

• Freezing

• Deposition

• Sublimation

Solid to Liquid

Gas to Liquid

Liquid to Solid

Gas to Solid

Solid to Gas

• Solid to Liquid

• Gas to Liquid

• Liquid to Solid

• Gas to Solid

• Solid to Gas

Atoms are the smallest unit of matter that maintains the properties of whatever element it is
Made of three parts!

Atomic Structure

Multiple Choice

Outside the nucleus of an atom are these

• protons
• neutrons
• quarks
• electrons

Multiple Choice

The nucleus of an atom is made of

• electrons and protons
• electrons and neutrons
• protons and neutrons
• empty space

Multiple Choice

Calculation used to find the number of neutrons in an atom

• Atomic Mass - Atomic Number
• Atomic Number - Atomic Mass
• Atomic Mass - Electrons
• none of these

Multiple Choice

A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass

• Electron Shells
• Orbitals
• Electron Cloud
• Nucleus

Multiple Choice

Where electrons are likely to be found as they travel around the nucleus

• Nucleus
• Electron Cloud
• Within a Proton
• Within a Neutron

Multiple Choice

The smallest particle of an element that shows all the properties of that element.

• Subatomic Particles
• Atom
• Quarks
• Gluons

Multiple Select

Which TWO particles can be changed within an element without changing what the element is?

• Neutrons

• Electrons

• Protons