Valence Electrons
Valence electrons are the electrons in the outermost shell. Skipping the transition metals/sunken rows you have hydrogen in column one meaning it only has one electron, beryllium two electrons, boron three electrons, carbon four electrons, etc. The number of the columns is represented by the valence electrons which means that the ones column of the number is the amount of valence electrons. What is the number of valence electrons of nitrogen? Put what is "What is" at the beginning of your Answer on All!
What is 5
Ionization energy is energy needed to remove an electron. Shells are the "rings" that go around the element. The more shells the lower the IE and that only works if the element is not in the same row. If they are not in the same row then you have to go look at which has more protons making that one have higher IE. If you have more shells on the element then it will be easier to take an electron away. Does Calcium have more Ionization energy or does Chlorine have more energy?
What is Chlorine
To find the atomic mass look at the bottom of the block. Ex: Hydrogen's mass is 1.008. To find the neutrons you subtract the number in the top left hand corner with the number at the bottom of the block (Mass). What is Tin's mass?
What is 118.71
How many valence electrons are in the outermost shell of Strontium?
What is 2
Is it harder to take electrons away from Magnesium or Helium?
What is Helium
What is Dubnium's mass?
What is 268
What is the valence number of Og? (*atomic number is 118*)
What is 8
Higher IE? W or Te?
What is Te
Which mass is bigger Li or Cd?
What is Cd
Which one has more valence electrons Astatine or Phosphorus?
What is Astatine
H or He?
What is He
What is the atomic mass or Ir? (Round to the nearest hundredth)
192.22
Which has less valence electrons As or Xe?
What is As