Atoms
These particles have a negative charge, no mass and located outside the nucleus.
Electrons
A biker traveled 60m in 6 seconds. What was the bikers speed?
10m/s
Identify a nonmetal with only one valence electron.
Hydrogen
An object at rest stays at rest until...
A force acts upon it
The change in speed or direction
Acceleration
These two particles (found in the nucleus) are what makes up an atom's mass
Protons and Neutrons
_____ Mg + _____ O2 --> _____ MgO
What is 2Mg + O2 --> 2MgO
Number of groups in the periodic table
Eighteen
If an object has multiple forces acting on it in the same direction, what math process would you use to find the total net force?
Addition
The horizontal rows on the Periodic table.
Periods
The element with 47 protons
Silver
_____H2 + ____O2 ---> ____H2O
What is 2H2 + O2 ---> 2H2O
The Metalloid in period 4 with four valence electrons.
Germanium
Double points: What are the units of the following measurements? (You must get all 3 correct to get the points) Force Mass Acceleration
F= N M= Kg A= m/s
Are found on the outermost energy level of an atom and determines how reactive an atom is.
Valence Electrons
The element with four energy levels and two valence electrons.
George pushes a box with a force of 16N to the left. Bobby pushes the same box from the opposite side with a force of 10 N to the right. What will be the result?
Double Points opportunity: Identify 2 other forces that could be acting on the moving box.
The box will move 6 N to the left
Double Points Bonus: Gravity and Friction
Na is the chemical symbol for this element
Sodium
He published the book Philosophiae Naturalis Principia Mathematica in 1687 outlining the 3 laws of motion.
What is Sir Isaac Newton
The elements that touch the "staircase" line on the Periodic Table.
This atom has 138 neutrons.
Radium
Balance the following equation:
___NaBr + ____CaF2 ---> ____NaF + ____CaBr2
2NaBr + CaF2 ---> 2NaF + CaBr2
Name of the second most reactive group of metals
Alkaline Earth Metals (group 2)
An elephant has a force of 9,000N and an acceleration of 12m/s(s). A Hippo has a force of 4,000N and an acceleration of 4m/s(s). What are the masses of the 2 animals and which one is greater?
Elephant = 750kg Hippo = 1000kg Hippo > Elephant
Double Points: List the types of chemical reactions.