Periodic Table
Electrons
Elements
100
This is the chart that organizes all of the known elements.
What is the Periodic Table of Elements?
100
These are the rings around the nucleus where electrons are found.
What are energy levels?
100
These are the elements that make up most of the Periodic Table of Elements.
What are metals?
200
This contains all of the elements with the same number of valence electrons.
What is a group?
200
These are the electrons in the outermost energy level.
What are valence electrons?
200
This element has an atomic number of 79 and is found in most pieces of jewelry.
What is gold (Au)?
300
This contains all of the elements with the same number of energy levels.
What is a period?
300
This is the number of electrons that the first energy level can hold.
What is 2?
300
This is the symbol for the element that all living things need.
What is O (Oxygen)?
400
This is the number that tells how many protons are in an element.
What is the atomic number?
400
This is the number of electrons that make an atom "happy" (stable) from the 2nd energy level and up.
What is 8?
400
This is the classification for the elements that are located to the left and right of the staircase in the Periodic Table of Elements.
What is a Metalloid?
M
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