Electropositivity decreases across periods/increases while
traversing down a group.!
Electronegativity increases across a period /decreases down a
group!
A more electronegative atom will have more attraction to the
electrons in a chemical bond.
Halogens have high electronegativity
Atomic radius increases as you move down the periodic table and
to the left.
In which direction on the periodic table does metallic character
increase?
Down and to the left
Who developed the equation that allowed the energy of the
electron to be described quantum mechanically?
Schrödinger
What scientist proposed that the electron in a hydrogen atom can only
have certain energies (i.e., the electron is quantized)?
Bohr
Which scientist surmised the scientific principle that the position and
momentum of an electron cannot be known simultaneously with a high
degree of accuracy?
Heisenberg
Metals tend to form cations !
, Because electron energy levels are quantized, which of the following
is true?
1.Atomic emission spectra are a series of discrete lines.
2.Electrons may only occupy a discrete set of energy levels
In which direction along the periodic table does thermal conductivity
generally increase?
As you move left across a period
Atomic Radius
In general, atomic radius decreases across a period and increases
down a group.
Rank the following atoms in order of increasing first ionization energies
(i.e., lowest to highest): Rb, F, Mg, B, N.
Rb < Mg < B < N < F
Rank the following atoms in order of decreasing first ionization
energies (i.e., highest to lowest): Li, Be, Ba, F.
F > Be > Li > Ba
Which of the following series of isoelectronic ions (Mg²⁺, N³⁻, F⁻, Si⁴⁺)
has the ionic radii in order of largest to smallest?
N³⁻ > F⁻ > Mg²⁺ > Si⁴⁺
In a ground state atom of S how many electrons total will have the
quantum number ℓ = 0?
6
If a hydrogen (H) atom and a helium (He) atom travel at the same
speed, which of the following is true about the de Broglie wavelengths
of the atoms?
traversing down a group.!
Electronegativity increases across a period /decreases down a
group!
A more electronegative atom will have more attraction to the
electrons in a chemical bond.
Halogens have high electronegativity
Atomic radius increases as you move down the periodic table and
to the left.
In which direction on the periodic table does metallic character
increase?
Down and to the left
Who developed the equation that allowed the energy of the
electron to be described quantum mechanically?
Schrödinger
What scientist proposed that the electron in a hydrogen atom can only
have certain energies (i.e., the electron is quantized)?
Bohr
Which scientist surmised the scientific principle that the position and
momentum of an electron cannot be known simultaneously with a high
degree of accuracy?
Heisenberg
Metals tend to form cations !
, Because electron energy levels are quantized, which of the following
is true?
1.Atomic emission spectra are a series of discrete lines.
2.Electrons may only occupy a discrete set of energy levels
In which direction along the periodic table does thermal conductivity
generally increase?
As you move left across a period
Atomic Radius
In general, atomic radius decreases across a period and increases
down a group.
Rank the following atoms in order of increasing first ionization energies
(i.e., lowest to highest): Rb, F, Mg, B, N.
Rb < Mg < B < N < F
Rank the following atoms in order of decreasing first ionization
energies (i.e., highest to lowest): Li, Be, Ba, F.
F > Be > Li > Ba
Which of the following series of isoelectronic ions (Mg²⁺, N³⁻, F⁻, Si⁴⁺)
has the ionic radii in order of largest to smallest?
N³⁻ > F⁻ > Mg²⁺ > Si⁴⁺
In a ground state atom of S how many electrons total will have the
quantum number ℓ = 0?
6
If a hydrogen (H) atom and a helium (He) atom travel at the same
speed, which of the following is true about the de Broglie wavelengths
of the atoms?
