1 / 3
Chemistry B: Lesson: CHARGING UP: IONIZATION OF ATOMS
Ionization energy - -The energy necessary to
overcome the attractions of electrons to the nucleus of an
atom so as to remove electrons from the atom in the gas
phase
valence electrons - -Electrons from one atom that
enter into reactions with electrons from a second atom
ion - -A charged atom or particle
The energy necessary to overcome the attractions of
electrons to the nucleus of an atom so as to remove
electrons from the atom is called charging energy.
True
False - -False
A charged atom or particle is called a(n) _______.
muon
ion
isotope
prion - -Ion
If the valence electrons were removed, what would be the
ion charge of the element?
Na = _____
-1
+1
-3
+3 - -+1
If the valence electrons were removed, what would be the
ion charge of the element?
Mg = _____
-1
+1
-2
+2 - -+2
Al = - -+3
How is E related to a period of elements?
E generally increases from right to left.
E generally decreases from right to left.
E is constant within any given Period. - -E generally
decreses from right to left
What factor(s) may be responsible for the ionization
energy within a period?
Select all that apply.
The valence electrons are further from the nucleus when
moving from left to right.
The valence electrons remain at the same distance from
the nucleus when moving left to right.
The diameter of the atom decreases somewhat as
electrons are added.
The attractive force of the nucleus increases. - -The
diameter of the atom decreases somewhat as electrons
are added.
The attractive force of the nucleus increases.
Electrons located in the outermost shell of an atom are
called - -Valence
Complete the chemical change.
+e- --> Cl- - -Cl
Complete the chemical change.
Na โ Na+ + - -1e-
The reactiveness of nonmetals depends on the atom's
ability to - -gain
Select the number of valence electrons for nitrogen -
-5
Select the number of valence electrons for fluorine. -
-7
Select the number of valence electrons for hydrogen. -
-1
