Matter Test Review.

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Presentation transcript:

Matter Test Review

Do you know your atoms?

Name the 3 parts of an atom Electrons Protons Neutrons

List the charge for each part: Electrons are: Negative Protons are: Positive Neutrons are: No charge

What is inside of the nucleus? Protons Neutrons

What is outside the nucleus of the atom? Electrons

What is the arrow pointing to? Electrons on the outside

What is the charge of the nucleus? Positive because protons are positive and neutrons have no charge

The atomic mass is the number of protons and neutrons in the nucleus Protons and neutrons have the mass of 1 amu. Count protons and neutrons to find the atomic mass The atomic mass of this atom would be 40 because 20 protons + 20 neutrons = 40

What is the atomic mass? It is 39 because there are 19 protons + 20 neutrons

Do you know your elements?

You can use the periodic table to find the atomic number of every element

The periodic table is organized by the atomic number (# of protons)

How many protons does silver have? 47

Here is a close up of beryllium from the periodic table: It’s atomic mass is 9.0122, which means it has an average of 9.0122 protons and neutrons (we’ll get into why it is averaged later)

What is the atomic number? 17

What is the atomic mass? 24.305

What is the number of protons? 7

What is the atomic mass? 35.453

Which atom is lithium, with an atomic number of 3? 3 protons 2 neutrons 2 protons 3 neutrons

What is the atomic number? 12

What is the number of protons? 17

Which atom is helium, with an atomic number of 2? 3 protons 2 neutrons 2 protons 3 neutrons

What is the number of protons? 4

The atomic mass is the number of ______ and ________ Protons and neutrons

Which atom is fluorine, with an atomic number of 9? 9 protons 8 neutrons 8 protons 9 neutrons

Do you know your phases of matter?

What are the 3 states of matter? SOLID LIQUID GAS

When a material is cooled, what happens to the motion of the molecules? Move slower

When energy is added to Liquids and they become a gas quickly, the process is called BOILING

If the gas is trapped and cooled enough to become a liquid, then _________ has occurred. CONDENSATION