The charge of a proton
Positive
What is the charge of an electron?
Negative
What makes up the mass of an atom?
Protons and Neutrons
How would you determine the number of outermost electrons on the Periodic Table?
Each element group is numbered by amount of electrons on outermost level
How are elements arranged on the periodic table?
Based on atomic number,reactivity, and valence electrons
The charge of a neutron
Neutral or No Charge
Where are electrons located in the atom?
Electron Cloud
What components make up an element?
Protons,Neutrons and Electrons
How are periods classified on the periodic table?
Same amount of outer shells
What two components make up an element?
Protons and Electrons
Where are protons and neutrons located in an atom?
In the nucleus
What are Valence Electrons?
The electrons on the outermost ring.
Which group is the most reactive?
Group1
How are groups classified on the periodic table?
Same chemical properties
Identify the element with 3 energy levels and 2 valence electrons
Magnesium
If Magnesium has an atomic number of 12, how many protons are there?
12
How many electrons are in each energy level?
1st Energy Level: 2
2nd Energy Level: 8
3rd Energy Level: 8
What determines the reactivity of an element?
Number of Valence Electrons
what element is in group 16,period 6?
Po,Polonium
Name the element with 102 protons?
Nobelium,or No
What allows an atom to react with another?
The Electron Cloud
What does the atomic number represent on the periodic table?
The number of positive charges in an atom.(protons)
Why aren't noble gases reactive?
They have a full outer shell.