Periodic Table
Atoms
Metals and Nonmetals
Element Identity
Bonus
100
The atomic number of an element tells us
The number of protons
100
This is the center of an atom
The Nucleus
100
Nonmetals are found on this side of the periodic table
Right
100
First element in group 1
Hydrogen
100
The chart scientists use to organize and classify all the known elements
The Periodic Table Of Elements
200
The horizontal rows on the periodic table
periods
200
These particles have a negative charge, no mass and located outside the nucleus.
Electrons
200
Metals are found on this side of the periodic table
Left
200
Third element in group 16
Selenium
200
The only Noble Gas that does not have 8 valence electrons.
Helium(He)
300
Number of groups on the periodic table
18
300
These two particles (found in the nucleus) are what makes up an atom's mass
Protons & Neutrons
300
Name of the most reactive metals in the periodic table
Alkali Metals
300
What element has the atomic number of 52
Tellurium
300
Name of the group of elements on the stairs in the periodic table
The metalloids
400
Sn is the chemical symbol for this element
Tin(Sn)
400
The three subatomic particles that make up an atom
Protons, Neutrons, & Electrons
400
Characteristics of Metals
Metals are lustrous, malleable, and ductile
400
Oxygen
400
Found on the outermost energy level of an atom and determines how reactive an atom is
Valence Electrons
500
When added together, they make up the atomic mass
Protons and Neutrons
500
An atom with the same number of protons and different number of neutrons is called this
Isotope
500
Characteristics of Nonmetals
Nonmetals are brittle, non-malleable, and non-ductile
500
Neon
500
The reason why elements form bonds
To become stable by getting a full outer electron(valence) shell