Atomic Radius
which atom has a larger atomic radius Fr or He
Fr
what is a cation
a positively charged ion
The electron affinity of metals is _____ nonmetals.
Lower than
what is the first noble gas on the periodic table (hint top right)
Helium
what direction does metal chemical reactivity increase
left and down on the periodic table
which atom has a larger atomic radius H or K
K
What is an anion
A negatively charged ion
Which alkaline earth metal has the highest electron affinity?
Beryllium
What elements react the least
Noble gasses
what direction does non metal chemical reactivity increase
to the right and up on the periodic table
which atom has a larger atomic radius Ac or Og
Ac
What affects ionization energy
The force of attraction between electrons and the nucleus
In the periodic table, the halogens possess the/a _____ electron affinity.
Highest
what are the elements in group 1 row 2-7 called
alkali metals
is lithium or francium more reactive
Francium
which atom has a larger atomic radius Sr or Ba
Ba
Which atom has a higher ionization energy Hydrogen or Oxygen
Oxygen
the trend of electron affinity in the periodic table does what as you go down a period
Decreases
are Halogens or non metals more reactive
Halogens
what elements is more reactive Calcium or Potassium
Potassium
which atom has a larger atomic radius Zr or Ra
Ra
How does ionization function
Ionization is the process by which ions are formed by gain or loss of an electron from an atom or molecule. if an atom or molecule gains an electron, it becomes negatively charged (an anion), and if it loses an electron, it becomes positively charged (a cation)
What is electron affinity
the amount of energy liberated when an electron is added to a neutral atom to form a negatively charged ion.
what are lanthanides on the periodic table
elements 51-71
what group of elements is more reactive Alkali metals or alkaline earth metals
Alkali metals