atom

Open Ended

What do you think everything around us is made of?

Open Ended

What do all these have in common?

Draw

draw (on paper or tablet) how they imagine the smallest particle of matter might look like.

Multiple Choice

What is the smallest particle a substance can be divided down to and still be the same called?

• matter

• molecule

• electron

• atom

Draw

What is the smallest subatomic particle known today?

Research and discuss the results in class.

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Multiple Choice

What is the negatively charged particles in an atom?

• nucleus

• protons

• neutrons

• electrons

Multiple Choice

What is the neutral particles in an atom?

• nucleus

• protons

• neutrons

• electrons

Multiple Choice

What is the positively charged particles in an atom?

• nucleus

• protons

• neutrons

• electrons

Multiple Select

What two particles are located in the nucleus of an atom?

• protons

• electrons

• nucleus

• neutrons

Multiple Choice

Where are the electrons located?

• inside the nucleus

• outside the nucleus

• on the elemental square

• on the top of the atom

Multiple Select

Which two particles of an atom make up most of the mass?

• protons

• electrons

• neutrons

Multiple Choice

Why is an atom considered to be neutral?

• same number of protons and neutrons

• same number of protons and electrons

• same number of neutrons and electrons

• same number of protons, electrons, and neutrons

Multiple Choice

How many electrons can the 1st orbit of the electron cloud hold?

• 2

• 8

• 18

• 36

Multiple Choice

How many electrons can the 2nd orbit of the electron cloud hold?

• 2

• 8

• 18

• 36

Multiple Choice

How many electrons can the 3rd orbit of the electron cloud hold?

• 2

• 8

• 18

• 36

Multiple Choice

What are the valence electrons?

• electron cloud

• all the electrons

• electrons in the first shell

• electrons in the outer most shell

Multiple Choice

What is an atom that has more neutrons than protons called?

• isotope

• even

• isotonic

• unstable

Valence Electrons

Electrons on the outter shell are called "valence electrons."

The first shell can hold 2 electrons.

The 2nd shell can hold 8 electrons.

The 3rd shell can hold 8 electrons.

Multiple Choice

How many valence electrons in this diagram:

• 1

• 3

• 5

• 7

Particle Charges:

Protons are positively charged.

Neutrons are neutrally charged.

Electrons are negatively charged.

Multiple Choice

How many valence electrons in this diagram:

• 1

• 3

• 5

• 7

​Copy this picture into your notes

Match

Match the following

atomic number of 8

atomic number of 10

atomic number of 3

• atomic number of 8

• atomic number of 10

• atomic number of 3

Draw

What is an ion? How many types of ions can be found?

Multiple Choice

REVIEW: What is the atomic number of Neon?

• 10

• 20.180

• 10.180

• One, because you can't spell Neon with O- N -E

Multiple Choice

How is average atomic mass determined?

• By adding all of the protons and neutrons together.

• by summing the masses of the element's isotopes, each multiplied by its natural abundance on Earth

• By multiplying of often protons and neutrons occur and adding up the averages.

Multiple Choice

How many neutrons does an atom of symbol pictured have?

• 26

• -26

• 70

Multiple Choice

How many protons does an atom of symbol pictured have?

• 22

• 26

• 70

Multiple Choice

What is the total number of particles in the nucleus atom of symbol pictured have?

• 22

• 70

• 48

​

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