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Build an Atom
Groups
The Set Up
Periodic Table
Trends in the periodic table
100

What is the positively charged subatomic particle of the atom

proton

100

A elemental metal that has the chemical symbol Cu

copper

100
The electrons that in the highest energy level of the atom and held most loosely
What are valence electrons?
100
The number of protons in an atom
What is atomic number?
100

Metals tend to _______ electrons

lose

200

What is the neutral subatomic particle of the atom that.

neutron

200
Several elements that lie along a zigzag line between metals and nonmetals. Depending on conditions these elements behave as either metals or non metals.
What is metalloid?
200

This is a way to depict the number of valence electrons in an element

Lewis structure / electron dot diagrams

200

The smaller of the two numbers shown on an element on the periodic table is the...

atomic mass

200

Non-metals tend to _____ electrons

gain

300

What is the negatively charged particle of the atom? 

electron

300

These elements are located in Group 18 and are non-reactive

What is noble gas?

300
This is when an atom reacts and becomes chemically combined with another atom.
What is a chemical bond?
300

The elements on the left of the periodic table are all...

metals

300

Electronegativity increase as you go__________ the periodic table. 

across

400

The area of the atom that contains both the neutrons and the protons. 

nucleus

400
These elements are located in Group 17 and gain just one more electron in order to gain stability
What is halogen?
400

The number of valence electrons in an atom of an element determines this

properties

400
A representation of an element usually consisting of one or two letters.
What is the chemical symbol?
400

Metals reactivity increases as you go ______ the periodic table while non-metal reactivity increases as you go _______ the periodic table

down, up

500

The location of the electrons in the atom

shells/energy levels/orbitals

500
These elements are the most reactive group of atoms and are found in Group 1
What are the alkali metals?
500

These elements make good conductors of electricity.

 metal

500
The horizontal rows that the periodic table is organized in
What is a period?
500

Fluorine is more reactive than chlorine because....

it has a higher electronegativity

a smaller atomic radius