States of Matter
What are the three main states of matter?
Solid, Liquid, and Gas
What are atoms?
The building blocks of matter
What is the periodic table?
The periodic table is a tabular (table) array of the chemical elements organized by atomic number
What are elements?
Elements are pure substances made of only one type of atom
What is density?
Density is how much matter is packed into a given volume
What state of matter is an ice cube?
Solid
What are atoms made of?
Protons, Neutrons, and Electrons
Based on the reading about elements, what is one other name for an electron cloud?
Energy Level
One example of an element is:
1. Six Noble Gases
2. Helium, Oxygen, Carbon
3. Any of the other 118 (lol)
What is the formula for density?
Density is qual to mass divided by volume
What state of matter is Oxygen?
What is the nucleus?
The center of the atom
What are the rows on the periodic table called?
Periods
One property of an element is:
Reactivity
Conductivity
Magnetism
How do you find the density of a curved solid?
DISPLACEMENT
What state of matter is milk?
Liquid
What is the space outside the nucleus that contains electrons called?
The electron cloud
What are the columns of the periodic table called?
Groups
How many NATURALLY occurring elements are there?
118
True or False:
Density is a property of elements on the periodic table.
TRUE!
Which state of matter has the tightest packed particles?
Solid
What is the CHARGE of a neutron?
Neutral
How do scientists determine reactivity of an element?
By looking at the PERIOD
What is one example of an element in our everyday life (from the reading)?
Lithium
Florine
Chromium
Bismuth
If the density of an object is 12 g/cm3, what will the density be when the object is cut in half?
12 g/cm3
Give one example of EACH state of matter using materials around you!
Example-
Desk: Solid
Air: Gas
Water: Liquid
How is the mass of the parts of an atom measured? (units)
AMU: atomic mass units
What are the six noble gases?
Helium, Neon, Argon, Radon, Krypton, and Xenon
Who invented the periodic table?
Dmitri Mendeleev
What is one factor that affects density?
Temperature, Pressure, Compactness