Valence Electrons
How many valence electrons does Lithium have?
1 Valence Electron
What is the trend for atomic radius?
Increasing as you go down and to the left.
Elements in Group 2 of the periodic table belong to this family.
alkaline earth metals
What element has 17 protons and electrons?
Cl- Chlorine
Groups are
Vertical columns
How many valence electrons does Boron have?
3 Valence Electrons
What is the trend for electronegativity?
Increasing as you move up and to the right.
Transition metals are found in these groups on the periodic table
What are Groups 3 through 12
What element has 12 protons and electrons?
Mg- Magnesium
Periods are
Horizontal rows
How many valence electrons does Selenium have?
6 valence electrons
Which element has the largest atomic radius? O or K
K
Alkali metals are located in this group on the periodic table.
What is Group 1?
What element has 18 protons and electrons?
Ar- Argon
What element is in period 2 group 14
C/Carbon
An element symbol that has 2 valence electrons.
Be, Mg, Ca Sr, Ba, Ra
Which element has the highest electronegativity? F or Li
F
Halogens have this many valence electrons.
7 valence electrons
What element has 15 protons and electrons?
P- Phosphorous
What element is in group 11 period 4?
Cu/Copper
What are valence electrons?
Electrons in the outer most shell.
Why is the radius of some elements larger than others?
More electrons/more shells
If an element has a full outer shell of electrons, then it belongs to this family.
Noble Gases
Sulfur is in group___ period____
16/3
Element in group 2 period 1
None