Sig Figs!
Early Atomic Theory
Name it!
The Periodic Table
Potpourri
200

When counting the number of significant figures, nonzero numbers and ______ zeros are always significant.

What are captive?
200

Dalton's Atomic Theory was the first main theory to begin characterizing atoms in relationship to the world around us. This section in the theory states that all matter is neither created nor destroyed.

What is the Law of Conservation of Matter?

200

A compound containing a metal and a nonmetal is commonly referred to as this. 

What is an ionic compound?

200

The number on top of each element symbol tells us how many protons are in a neutral atom. It's called this and determines how many electrons are in a neutral atom. 

What is the atomic number?

200

Color, hardness, and texture are all examples of these types of properties.

What are physical properties?

400

6.022 is an important number in chemistry known as Avogadro's number. It also has this many significant figures. 

What is four?

400

Along with JJ Thompson's cathode ray experiment, this experiment helped us determine the mass of an electron. 

What is Milikan's oil drop experiment?
400

Al2O3

What is Aluminum Oxide?

400

Group 17, or the halogens, commonly gain one electron to make them exhibit the same number of electrons as the ___ _____, or Group 18. 

What are the Noble Gases?
400
How prone something is to react is a ____ property.
What is chemical?
600

In chemistry, we deal with small numbers, like 1.00  10-14 when talking about acids and bases. It also has this many significant figures. 

What is three?

600

Until James Chadwick's work, this subatomic particle wasn't known to exist because of its neutral charge.

What is a proton?

600

SF6

What is Sulfur hexafluoride?
600

The __________ ______ are metals with variable charge in ionic compounds.

What are transition metals?

600

Density is this type of property. 

What is an intensive property?
800

The summation of 93.5 + 9.28 is tricky, and its answer in correct sig figs will be tricky too. 

What is 102.8?

800

Until this experiment by Ernest Rutherford, the plum pudding model was widely accepted. After, the nuclear model became popularized.

What is the gold foil experiment?

800

TiCl4

What is Titanium(IV) Chloride?

800

All metals will have a positive charge in binary ionic compounds. This is because they are ______

What are cations?

800

This type of mixture forms distinct sections between the elements its composed of. That's what makes mixtures cloudy. 

What is a heterogeneous mixture?

1000

(94.67 + 7.9) x 6.25

What is 641?
1000

The understanding that all samples of a pure compound contain the same elements in the same ratio of mass. 

What is the Law of Definite Proportions?
1000

HNO2

What is nitrous acid?

1000

The number listed at the bottom of an element symbol is the ______, a commonly accepted value of how much an atom weighs. 

What is the average atomic mass?

1000
Stable isotope A has a mass of 35.34 amu, and Stable isotope B has a mass of 32.81 amu. Scientists discover that this isotope A has a percent abundance of 83.2% and isotope B has a percent abundance of 16.8%, making the average atomic mass this. 

What is 34.9 amu?