Easy
What chart organizes all the known elements?
Periodic Table
Anything with mass that takes up space
Matter
The smallest unit of an element
Atoms
True/False: Elements on the RIGHT side of the periodic table are NONmetals
True
True/False: The periodic table is organized in order of increasing the atomic number.
True
If an iron rod is exposed to heat, what can be assumed about its molecules?
They will move faster
Molecules with the ___________ thermal energy move the slowest
Lowest
Is Calcium (Ca) more closely related to potassium (K) or beryllium (Be)? You must explain your answer.
Beryllium because they are in the same group/family
Where are the metalloids located?
On the zig zag line
Where are electrons found in an atom?
Outside of the nucleus in the electron cloud
Which molecules move the slowest?
What group are the Alkaline Earth metals?
Group 2
If you take away all of the atoms in a spoon what are you left with?
Nothing
DOUBLE JEOPARDY
What element would Oxygen have more in common with, Nitrogen or Sulfur? Explain your answer!
Sulfur because they are in the same group, and groups have similar properties
If we slosh water in a gallon jug around, how long would it take the molecules to stop moving?
They would NEVER stop moving because molecules are ALWAYS in motion
How do you find the mass of an atom?
Add the number of protons and number of neutrons
If a liquid is kept at a constant temperature what happens to the speed of the molecules?
They stay at a constant speed
What trend is seen as you move across a period in the periodic table?
The elements increase in atomic number from left to right
Which subatomic particles are found in the nucleus?
Protons and Neutrons
When water boils how do the molecules react?
They speed up and move apart
How would we slow down particle movements in a gas?
Reduce the temperature they are exposed to
What are the charges of the 3 subatomic particles?
Protons- Positive
Electrons- Negative
Neutrons- NO charge
How do hot air molecules differ from cold air?
They move faster (aka they have more kinetic energy)
How are elements arranged into their group/family?
They are organized by similar characteristics
Where are each of the 3 subatomic particles found in an atom?
Protons and Neutrons are in the center of the atom, known as the nucleus and the Electrons are found outside of the nucleus in the electron cloud.