Atomic Structure
The nucleus of the atom contains which subatomic particles?
Protons and neutrons
Which subatomic particle is directly involved in the formation of bonds between atoms?
Electrons
In general, what is the trend observed on the periodic table with respect to electronegativity?
Decrease as you move down a group
Increase as you move from left to right
True or False:
Noble gases are famous for their lack of reactivity (due to having full valence shells)
True
Which of the 3 subatomic particles that makes up an atom has a charge of -1?
Electrons
In order to be considered a polar bond, the difference in electronegativity between 2 atoms must be greater than which value?
.4
In general, atomic radius and electronegativity demonstrate which type of relationship?
Their trends are generally opposite each other
Which groups on the periodic table are generally considered to be the most reactive elements? Why?
Group 1 and Group 17 elements are generally the most reactive due to only needing to gain/lose 1 electron to become stable
What is the maximum number of electrons an atom can possess in its valence shell? Provide the name of an atom that is an exception to this, too.
8 valence electrons
Hydrogen, Helium, Lithium, Beryllium, Boron or any nonmetal past the 2nd row when making a covalent bond
A singular bond indicates how many electrons are participating in the bond?
2 electrons
Which trend is observed with regard to atomic mass on the periodic table? Does atomic mass share a relationship (direct or opposite) with electronegativity or atomic radius?
Increase down a group
Increase from left to right
Atomic mass does not share a direct or opposite relationship with electronegativity or atomic radius
What is a major property that would allow you to easily distinguish a metal from a nonmetal?
Nonmetals cannot conduct heat or electricity well
Nonmetals are more electronegative than metals