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History of Chemistry
Parts of an Atom
Atomic Masses
Periodic Table
Bonding
100

The first "scientist" believed all matter in the universe was made out of what four "elements"?

Earth, Air, Water and Fire

100
The inner part of an atom that contains the proton and the neutron is called the __________.
Nucleus
100

What is the mass of an electron?

Pretty much 0
100

Where do you look to find the number of protons?

Atomic Number

100

Ionic Bonding takes place between what kinds of elements? 


Metals + Nonmetals

200

The man who created the modern periodic table...

Dmitri Mendeleev

200
These particles have a positive charge and are found inside the nucleus.
proton
200

What number is the atomic mass on the periodic table?

Bottom number

200

How do you find the number of neutrons of an element?

Subtract the Atomic Mass from the Atomic Number

200

Lithium loses 1 valence electron when bonding ionically. What will its charge be when it reacts?

+1

300
The earliest form of chemistry was called _______.
alchemy
300
These particles are located within the nucleus, and have no charge.
Neutron
300
A proton has the atomic mass of what?
1
300

How do you find the number of valence electrons an element has?

Look at the group number

300

The LARGE arrow in Ionic bonding is called?

Yield Sign

400
Names for elements comes from the English or __________ name.
latin
400
These particles are negatively charge and are found outside the nucleus.
electrons
400

What element is the lightest?

Hydrogen

400

How many shells does Sulfur have?

3

400

What is the vocabulary term for a POSITIVE ion?

Cation(Cats have paws)

500

People first realized that an atom had a proton and an electron in which decade of the 1900's?

10's

500
Most of the mass of an atom is located here.
nucleus
500

What element has the mass of 74.95 on the PT?

Arsenic

500

This element has 6 valence electrons, and they are located on the 2nd shell. What element am I?

Oxygen

500

If two nonmetals come together and share their electrons UNEQUALLY, what kind of covalent bond would they form?

A Polar Covalent Bond