Worksheetsatomic radii
Total questions: 10
Worksheet time: 6mins
What is an atomic radius and what are its periodic trends? Explain
(a)
which one is a noble gas?
Na
Ti
Xe
B
What is electronegativity
Electronegativity is the tendency of an atom participating in a covalent bond to attract the bonding electrons.
a symbol
a element
a gas
Why are ionization energies always positive?
because energy must be supplied an endothermic energy change to separate electrons from atoms
because daveon is the goat you feel me
because daveon is yo dad you feel me
because it must be seprated by positive atoms
How many valence electrons do chlorine and bromine have?
seven valence electrons
five valence electrons
six valence electrons
ten valence electrons
Why are ionization energies always positive?
This increased distance means a decreased attraction between the nucleus and the outer electrons. Less attraction equal lower ionization energy.
Therefore, the electrons in F have a greater attraction to the nucleus and require more energy to be removed.
Electrons are bound to an atom by electrostatic attractions to the nucleus. The negative electron is attracted to the positive nucleus.
Why are ionization energies always positive?
(a)
Which of the following can contain atoms that can have multiple oxidation states?
Alkaline earth metals
Transition metals
Alkali metals
Halogens
Which of the following has the highest electronegativity value?
Flourine
Cesium
Mercury
Zinc
Which group of elements can be predicted to have the lowest second ionization energy?
Group VIII
Group Vl
Group VII
Group Il
