Element Identification
What is the name of the element in period 2, group 15 (or group 5 to us)?
Nitrogen (N)
How many electron shells does Hydrogen have?
1
In a whole, how is the periodic table organized?
By increasing atomic number
What is a period?
A row on the periodic table
How many protons does Carbon have?
6 (atomic number)
What is the name of the element with an atomic number of 14?
Aluminum (Al)
How many valence electrons does Lithium have?
1
What changes when you from group 1 to group 2 to group 3 etc.?
The number of valence electrons gains by 1
What is a family on the periodic table?
A column on the periodic table
How many electrons does Carbon have?
6 (atomic number)
What is the atomic mass of Selenium (Se)?
78.97
Which element has 3 electron shells, and is in group 14 (or or group 4 to us)?
Silicon
What changes when you move from period 1 to period 2 to period 3, etc?
The number of electron shells increases by 1
What part of the periodic table shares similar properties?
Families
How many neutrons does Carbon have?
6 (atomic mass - atomic number)
What element has an atomic mas of 15.999?
Oxygen (O)
Which element is in period 4 and group 13 (or group 3 to us)?
Gallium (Ga)
How are periods organized on the periodic table?
By number of electron shells
What part on the periodic table of elements tells you the number of protons and electrons of an element?
The atomic number
How many protons, electrons, and neutrons does Lithium have?
P = 3 (atomic number)
E = 3 (atomic number)
N = 4 (mass - number = 7 - 3 = 4)
What element has the symbol Dy?
Dysproslum
How many valence electrons does Fluorine have?
17
How are groups on the periodic table organized?
By number of valence electrons
How do you find the number of neutrons for an element?
Subtract the atomic number from the atomic mass
How many protons, neutrons, and electrons does Calcium have?
P = 20 (atomic number)
E = 20 (atomic number)
N = 20 (mass - number = 40 - 20 = 20)