Atoms and Molecules
This particle is negative and is located outside of the nucleus.
Electron
Name for when two or more atoms bond together.
Molecule
What is the symbol for sodium?
Na
Wood burning is an example of what type of change?
Chemical
Name 3 signs of a chemical change.
Gas production, color change, temperature change, precipitate production
Name for the center of an atom where protons and neutrons are located.
Nucleus
Type of material made when humans chemically change a natural resource
Synthetic Material
Which element has one proton?
Hydrogen
Name one physical property.
Color, texture, shine, density, mass, size, anything that can be observed without changing the substance
"Matter cannot be created of destroyed" is the definition of what vocab term?
Law of Conservation of Mass/Matter
What two particles make up the mass of an atom?
Proton and neutrons
Term for when 2 or more liquids are mixed and a solid is formed.
Precipitate
Which element has 96 protons?
Curium.
Bonus 100 points if anyone knows who this is named after.
Ice cream melting is an example of what type of change?
Physical
What is the name of the substances before a chemical reaction?
___________. ----> Product
Reactant
An atom has 12 protons and 12 electrons. What is the charge of the atom?
0
Specific name for when atoms of different elements bond together.
Compound
How many neutrons does Oxygen have?
8
Salt dissolving in water is an example of what type of property?
Physical
What is the density of rock with a volume of 100ml and a mass of 600g?
6g/ml
An atom has 24 protons, 25 neutrons, and 23 electrons. What is the charge of the element?
+1
A molecule made of a repeating elements
Extended structure
How many neutrons does phosphorus have?
16
What is the name of the chemical property that determines is something is acidic or basic?
pH
A rock has a density of 10g/ml and a volume of 5ml. What is the mass of the rock?
50 grams.