Atoms and Subatomic Particles

Atoms & Elements

​

Do Now Day 2

Multiple Choice

What is Matter?

• anything that has mass

• anything that takes up space

• anything that has mass and takes up space

Multiple Choice

All matter, like your desk, is made up of tiny particles called...

• Pieces

• Atoms

• States

Open Ended

Last class, we spoke about 3 women. What were their names? (Type it in.)

Multiple Select

Which three particles make up atoms? (Pick 3)

• Protons

• Megatrons

• Honey buns

• Neutrons

• Electrons

Multiple Choice

The subatomic particle with a negative charge is the

• electron
• proton
• neutron
• nucleus 

Multiple Choice

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

Multiple Choice

What is the atomic number of an element with three protons?

• 2

• 1

• 3

• 6

Multiple Choice

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

Open Ended

What is an example of matter that is around you right now?

Multiple Choice

What element is this?

• Hydrogen

• Helium

• Lithium

• Beryllium

Open Ended

Use your periodic table and tell me which atom has 8 protons?

Multiple Select

Which atom below has 79 protons?

Let's complete the activity from our last session

​

Elements

• A substances that cannot be broken down into simpler substances by chemical means.

• An element is composed of atoms that have the same atomic number, that is, each atom has the same number of protons in its nucleus.

• On the next slide, you will be shown three games. Click "Atom" and play with the particles by moving them to the rings to see what happens.

• Then you will write five things you discovered.

Home

Open in new tab

Copy link

Open Ended

Write 5 things you noticed while playing with the atom game.

Multiple Choice

Can electrons go in the center?

• Yes

• No

Multiple Choice

Where do neutrons go?

• inside (nucleus)

• outside (electron cloud)

Atomic Number

• Every element has a unique atomic number, it indicates the number of protons in the nucleus of the atom.

• Normal atoms are neutral so it also is the number of electrons.

Atomic number

The atomic number of an element is located the top of each box in the periodic table

Play the Atom game again. This time pay attention to what happens when protons are added.

Home

Open in new tab

Copy link

Open Ended

Write 5 things you noticed while playing with the atom game.

Atomic number

The atomic number of this element is 79. That means that it has 79 protons and 79 electrons.

Atomic number

Which atom has 16 protons and 16 electrons?

Multiple Choice

How many protons does the element in this image contain?

• 14

• 7

• 15

• 18

Multiple Choice

What is the atomic number?

• the number of protons

• the number of protons and neutrons

• the number of neutrons

• the number of protons and electrons

Multiple Choice

The atomic number tells you what?

• number of electrons

• number of protons

• number of neutrons

• both electrons and protons in an atom.

Ok...Back to your sheet

Element Name

Every element its own unique name. Many Element names are very old like chemical symbols many are based on other languages, chlorine is named after khloros the greek word for "greenish-yellow." New names are approved by an international committee.

Chemical Symbols

Every element abbreviated using a unique symbol of one or two letters. The first letter is always capitalized and if there is a second letter, it is lower case.

Some are based on other languages-Fe is Iron from the latin "ferrium".

Multiple Select

Which symbols are incorrect?

• Rd

• P

• TA

• LM