Atoms
The Periodic Table
Elements vs. Compounds
Mixtures vs. Pure Substances
Homogeneous vs. Heterogeneous
100
This subatomic particle is found in the nucleus and has a positive charge
Protons
100
How many protons are in the carbon atom?
6
Bonus question for another 100 points: What is the name for that number?
100
CO2
Compound
100
Salt dissolved in water
Mixture
100
Sand mixed with water
Heterogeneous
200
This subatomic particle is not found in the nucleus and has a negative charge
Electrons
200
What is the atomic mass of Fluorine?
18.998 (will also accept rounded answers)
200
O3
Element
200
Glucose (C6H12O6)
Pure Substance
200
Shampoo
Homogeneous
300
This subatomic particle is found in the nucleus and has a neutral charge
Neutrons
300
Approximately how many neutrons are present in a Neon atom?
10
300
Compound
300
A mixture is something that can be separated using ____________ means
Physical
300
Which of the following is a homogeneous mixture?
A
400
This subatomic particle is responsible for determining what element the atom is.
Protons
400
How many electrons does an iodine atom need in order to be a neutral atom?
53
400
Which of these is does not contain elements
C
400
Which of the following contains pure substances only?
B and D
400
A fizzy soda
Heterogeneous
500
This subatomic particle is responsible for reactivity with other atoms.
Electrons
500
Which pair of elements listed below have properties that are most similar to each other?
1. Boron (B) and Carbon (C) 2. Argon (Ar) and Xenon (Xe) 3. Fluorine (F) and Chlorine (Cl) 4. Copper (Cu) and Tin (Sn)
3. Fluorine (F) and Chlorine (Cl)
500
Which of these contain only elements?
B and E
500
Which of the following are mixtures?
B, C, D, E, F, H
500
What is another name for a homogeneous mixture?
A solution