Worksheetsionisation energy
Total questions: 19
Worksheet time: 15mins
When across a period, the atomic size decreases so the first IE ___________.
increases
decreases
constant
i am not sure
When going down a group, the atomic size increases so the first IE __________.
increases
decreases
constant
I am not sure
Factors affecting the ionisation energy:
Atomic radius
Effective nuclear charge
Shielding effect
All of the above
The equation for the first ionisation energy of a sodium atom is:
Na (g) -> Na+ (g) + e-
Na+ (g) -> Na2+ (g) + e-
Na (s) -> Na+ (g) + e-
Na+ (g) + e- -> Na (g)
Which electron configuration represents an element with the highest first ionization energy?
2-1
2-2
2-8-1
2-8-2
Which equation correctly describes the first ionization energy of X?
X --> X- + e-
X --> X+ + e-
X --> X- + e+
X + e- --> X-
X + e- --> X+
In general ionization energy ____ as you go down a group,
and ____ as you go across the periodic table.
decreases, decreases
decreases, increases
increases, decreases
increases, increases
Energy is required to remove an electron from the atom.
TRUE
FALSE
Ionisation energy is ___________.
maximum energy required to remove 1 electron from 1 mol of gaseous atom
minimum energy required to remove 1 electron from 1 mol of gaseous atom
first ionisation energy
second ionisation energy
When across a period, the atomic size decreases so the first IE ___________.
increases
decreases
constant
i am not sure
First Ionisation Energy for Magnesium is higher than Sodium
True
False
The smaller the size of an atom, the ________ the energy needed to remove an electron from an atom
higher
lower
Ionisation energy is:
the minimum amount of energy required to remove the outermost electron from an atom in its solid state
the maximum amount of energy required to remove the outermost electron from an atom in its gaseous state
the minimum amount of energy required to remove the outermost electron from an atom in its gaseous state
none of the above
A shorter atomic radius of atoms in the same period will result in:
A higher first ionisation energy
A lower first ionisation energy
Ionization energy is the _____ energy required to _______ one mole of electron from one mole of gaseous atom at ground state.
maximum, remove
minimum, remove
maximum, add
minimum, add
1. The ______the atomic radius, the ________the attraction, the _______the ionisation energy.
smaller, stonger, higher
bigger, weaker, higher
Francium (Fr) has the lowest ionization energy in Group 1 because -
it has the smallest number of valence electrons
it has the greatest atomic mass
it has the greatest number of protons, so it attracts its electrons the strongest
its 1 valence electron is very far from the nucleus, so little energy is needed to remove it
