Periodic Table
What element name is Ne?
What is Neon?
What charge does a proton have?
Positive
Solid to Liquid
What is melting?
Making lemonade. Explain why.
What is physical? The sugar and water could be separated.
What is the symbol for the element Copper?
What is Cu?
T or F? A neutron has a negative charge!
False
Gas to Liquid
What is condensation?
Ice to liquid. Explain why.
What is physical? A change of state is a physical change.
What is the mass of oxygen? Round to the nearest whole number!
16
The inside of an atom is called the...
Nucleus
Liquid to Gas
What is evaporation?
Making pancakes. Explain why.
The properties of the ingredients before and after they have been cooked are very different. The ingredients cannot be separated and cooking the batter is an irreversible change.
What would the neutrons equal for the element K (Potassium)?
Neutrons = Mass - protons
20
An electron has what charge?
Negative
Liquid to Solid
What is freezing?
Photosynthesis. Explain why.
What is chemical? The reactions within the plant cause changes at the molecular level.
What would the neutrons equal for the element PB (Lead)?
125
T or F? - If you add the protons and neutrons, you will find the atomic mass of an element.
True
Solid to Gas
What is sublimation?
Burning a candle and watching the wax melt.
What is chemical? The burning part is chemical because a chemical reaction takes place with the oxygen and the wick. Ash, a new substance is formed.