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Atoms
Elements
Atoms/Elements
Periodic Table
100
This is the center of an atom, electrons orbit this
What is the nucleus
100
Made up of only one kind of atom
What is an element
100

The gas on the Periodic table before helium

hydrogen

100
These two types of element classifications are found on the right side of the periodic table
What is metalloids and non metals
200
This is an uncharged particle in the nucleus of the atom.
What is a neutron
200
These are arranged on the periodic table according to their atomic number
What is an element
200
Anything that has mass and takes up space
What is matter
200
This family of elements are very reactive metals that are malleable, ductile, and can explode if exposed to water
What are Alkali Metals
300
This state of matter is electrically charged because the electrons are stripped away from the nucleus
What is plasma
300
These are shiny, good conductors of heat and have luster
What is a metal
300
This is the man that created the periodic table in this year
Who is Dimitri Mendeleev in 1869
300

As the atomic number increases across a period, what happens to the atoms...

options-

- increases in size

- increases in number of protons and electrons

400
This is a positively charged particle in the nucleus of the atom
What is a proton
400
These are poor conductors of heat and electricity. They are dull in appearance
What is a non metal
400
This family of elements will not form compounds
What is the Noble gasses.
400
This family of elements has properties of both metals and non-metals
What are metalloids
500
This is a negatively charged subatomic particle
What is an electron
500
All elements in the same row or "period" share this
What are atomic orbitals
500

Difference between compound and mixture

Compounds- chemically bonded elements, mixtures are not

500

Name of the columns of the Periodic Table

Groups