Atoms
What are atoms?
It’s the basic “building block” that makes up life.
How many elements are there?
118
What are the 3 stages of matter
Solid,liquid,gas
What group are the Nobel gasses
Group 18
What is a mixture
When 2 or more things are added together.
Describe an atom
Smallest particle of an element
What is atomic mass?
Total weight of protons,neutrons, and electrons
What is a pure substance?
A pure substance that has the same chemical composition through out
What element is represented by the letters, “Md”
Mendelevium
What is a homogeneous mixture?
When the substances are distributed equally
What’s the center of an atom called?
The nucleus
There’s 2 rows disconnected from the original table what is one of the names of the rows
Lanthanid series
How many of the 118 elements are found in nature?
90 of the 118 elements are found in nature
Which one of the elements are represented by the letters, “Rb”
Rubidium
Heterogeneous mixture
Each item keeps its consistency and flavor
What is a atom made up of?
Electron,Protons,neutrons
There are 2 rows of elements disconnected from the table. What is the name of the other row.
Actinide series
What are some examples of a naturally occurring element
Carbon,oxygen,gold,silver and iron
What element is represented by the letters, “Cu”
Copper
What is shifting
When you sort out all of the solids in the mixture
A charged atom is called.
Ion
Who made the periodic table?
Dmitri Mendeleuev
What is a synthetic element?
A element made in a lab by humans
What element is represented by the letters, “Yb”
Ytterbium
What is filtration?
When you separate solids from the liquids