A
What is the name of Ag?
Silver
What is the name of Pb?
Lead
What is the name of Rn?
Radon
What is the name of U?
Uranium
What is the name of Au?
Gold
How many neutrons does Calcium have?
20
How many neutrons does Iodine have?
74
How many protons does Zinc have?
30
How many neutrons does Hydrogen have?
0
How many protons does Phosphorus have?
15
How many valence electrons does Sr (Strontium) have?
2
Which family does Boron belong to?
Metalloids
What is the atom that has the electron configuration of: 2, 8, 3
Aluminium
Which family does Beryllium belong to?
Alkaline Earth Metals
What is the atom that has the electron configuration: 2, 8, 8, 3
Scandium
Between Carbon & Lead, which one has a smaller atomic radius?
Carbon (fewer shells)
What energy is required to remove electrons from their atom?
Ionisation Energy
An atom that has gained electrons is called...
Between Chlorine and Iodine, which has the higher ionisation energy?
Chlorine
An atom that has lost electrons is called...
Cations
The noble gases have zero electronegativity because?
Because they have completely full valence shells.
Why are the valence electrons more attracted to the nucleus as you go across the period (left to right)?
Electronegativity is defined as...
The ability to attract electrons during chemical bonding.
As you down a group the atomic radius _______, because ______________.
Increases, because more shells are added.
Effective Nuclear Charge = No. of Protons in the nucleus – No. of total inner-shell electrons