Periodic Table
The atomic number of an element is the same as the number of what in the atom?
Protons/Neutrons
The three types of subatomic particles that make up atoms?
What are Protons, Neutrons, and Electrons?
What type of atoms make up water molecules?
2 Hydrogens and an Oxygen
How many grams are in a kilogram?
1000 grams
I am measuring if the amount of sunlight a plant get effects how much it grows. What is the independent variable?
Amount of sunlight
6
Which scientist was the first to claim that "matter was made of small, hard particles called 'atomos' "
Democritus
How do you determine protons from the periodic table?
The atomic number
9.4 Centimeters would be how many meters?
.094 Meters
You decide to clean the bathroom. You notice that the shower is covered in a strange green slime. You decide to try to get rid of this slime by adding lemonade juice. You spray half of the shower with lemonade juice and spray the other half of the shower with water. After three days, you measure the amount of slime on each side of the shower. What is the dependent variable?
The gasses in group 18 of the periodic table?
Noble Gasses
What charges do Protons, neutrons, and electrons have?
Protons: +
Neutrons: 0
Electrons -
How do you determine the number of neutrons in the periodic table?
Atomic mass - Atomic number
What does the metric prefix deci stand for?
.10
What is a control variable?
The group in an experiment that does not change
Atomic Number: 30
Atomic Mass: 65.38
Protons/ Electrons: 30
Neutrons: 35
Look at the bohr model on the screen. Name the element then tell me how many protons, neutrons and electrons does this element have.
Sodium
11
11
12
How many protons are in Germanium
32
Put these measurements in order from least to greatest.
5, 060 mg
0.57 g
4.2 g
2.75 g
990 mg
.57 g
990 mg
2.75 g
5,060 mg
On which axis does the DEPENDENT variable appear on a graph?
Y-Axis
The rows (side to side) on the periodic table are called?
Periods
Draw a Bohr model of Chlorine
Answers will vary
How many Neutrons are in Xenon?
77-78
Mrs. Martin is sewing costumes for the play. Each costume requires 38 centimeters of blue ribbon. If she creates 50 costumes, how many meters of blue ribbon will she need to use?
19 meters
One tank of gold fish is fed the normal amount of food once a day, a second tank is fed twice a day, and a third tank four times a day during a six week study. The fish’s weight is recorded daily. What are the Independent, dependent, and control variables of this experiment?
IV: Amount of food
DV: Fish Weight
CV: Fish fed the normal amount