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Drawing the Atom
Ions/Isotopes
Classifying matter
Physical/Chemical
The Atom
100

While not the most modern theory, this model allows us to draw atoms, showing electrons on the outside

What is a Bohr model?

100
The number of neutrons in Silicon-30.

Neutrons = 16

100

If a piece of matter is made up of only one type of atom, it is called this. 

What is an element?

100

Define chemical change.

Chemical change is the structure itself changing into something new, and cannot be reversed.

100
The sum of protons and neutrons in the nucleus of an atom.
What is mass number?
200

These are outer shell electrons.

What are valence electrons?

200
When an atom gains an electron it has this kind of electrical charge.
What is negative?
200

Salt (NaCl) is an example of this type of matter.

What is a pure substance?

200

Gasoline is flammable

What is a chemical property?

200

Three subatomic particles and their charges.

What are protons (+), neutrons (no charge) , and electrons (-)?

300

How many electrons can fit on each orbital surrounding the nucleus?

First orbital = 2e, then 8e on each

300

This is what an ion is called when it has a positive charge

What is cation?

300
The difference between a heterogenous mixture and a homogenous mixture 

Heterogenous is not mixed evenly throughout, while homogenous is

300

The cookies smell like chocolate.

What is a physical property?

300
An atom with the same number of protons but different number of neutrons.
What is an isotope?
400

Draw a bohr model for Sulfur on the board. And write its valence electrons.

On board

400

Find the number of protons, neutrons and electrons for 208O-1

P=20 N= 12 e=21

400
Fully dissolved sugar water is an example of this

What is a homogenous mixture?

400

Ice cream melting is an example of this

What is a physical change?

400

The region of space around the nucleus where an electron is likely to be found.

What is an orbital?

500

Draw a bohr model for 5224Cr-2 on the board and write its valence electrons.

On board

500

Find the number of protons, neutrons and electrons for 23592U+3

P= 92 N=143 e= 89

500

What is easier to separate, mixtures or compounds and why?

Mixtures because they aren't chemically bonded together and can be removed easier

500

Name three signs that a chemical changes has occurred

Color change, smell produced, temperature change, bubbles forming, solid forms, etc.

500

This is what the new, modern model of the atom called

What is the electron cloud model?