Atoms
What is an atom?
A small particle that is the building block of matter
What is an element?
A substance made of only 1 type of atom
What is a compound?
When atoms of two or more different elements are bonded together
What potential energy does gas and liquid have?
Gas has high potential energy & liquid has low potential energy
What two things do thermometers measure?
The average kinetic energy and the speed of particles in a material
How many atoms are in a element?
1
True of False - Elements can be solids, liquids, & gasses.
True
Can compounds be liquids, solids, and gases?
Do particles move faster or slower at higher temperature and why?
Particles move faster because they have more kinetic energy
What is thermal energy?
The combined total of kinetic and potential energy in a material
What is the ratio of atoms in water?
1:2
(for every one oxygen atom there's 2 hydrogen atoms)
True or False - The same elements can form different compounds.
True
67% Hydrogen, 33% Oxygen or 2 to 1 ratio
True or False - The state of matter doesn't determine the amount of potential energy contained in a substance.
If you add energy from a solid, what might it change to?
It would change from a solid to a liquid
How many parts are in a singular atom?
3
What are 3 elements that scientists have known for thousands of years?
Gold, silver, & copper
What is a compound of result of?
Chemical reaction
Do the molecule in water have more or less motion than the molecules in ice?
More motion
What states have definite volume?
Liquids & solids
How many natural kinds atoms are there?
92
How many elements are in the periodic table?
118
What is the difference between an element and a compound?
Elements are pure substances that are composed of only one type of atom. Compounds are substances which are formed by two or more different types of elements that are in fixed proportions.
Why do the bubbles carbonated water have more potential energy then normal water?
Because they are farther apart from one another
What does the state of matter determine?
The amount of potential energy contained in a substance