The periodic table contains __ columns (or groups).
18
Boron, Nitrogen, Carbon, or Oxygen: Which one has the highest ionization energy?
O
Magnesium or Sodium: Which element is considered "more metallic"?
Na
F or Cl: Which element has the lowest ionization energy?
Chlorine
The 3 main groups of the periodic table are composed by representative group, nobles gases and...
Transition and inner transition family
The main element that composes the living organisms is Carbon and it's considered a __________.
non-metal
The s,p,d,f is a classification of elements known as _________.
blocks
The columns have 2 types of numbering, the ________ and the _______
The classical (1-18) and modern (groups A and B)
In the periodic table, at the top of each element you'll find the ______________
Atomic Number (Z)
Fr has the biggest atomic radius, lowest ionization energy, highest electronegativity and highest metallic character.
False, Fr has the lowest electronegativity🤓☝️
Be has 2 valence electrons, B has 3, and Pb has 5. Which one is more electronegative?
Lead
W, Re, Os, or In: Which element has more metallic character?
Tungsten (W)
Ge, In, P, Hg: Which element has the least metallic character?
P
