Periodic Table
The group 1A elements (besides H) are known as this name.
What is the alkali metals?
What is the name of the group 2 elements?
What are alkaline earth metals?
This is the amount of energy required to remove an electron from an atom.
What is ionization energy?
Compared to the neutral atom (the parent), a negative ion of that atom has a _________ atomic radius. (Choices: "bigger" or "smaller")
What is bigger?
This is the number of valence electrons that Nitrogen has.
What is 5?
This is the group of elements that are inert (highly unreactive).
What are the noble gases (Group 8A/18)?
Name the element that is in Period 3, Group 5A.
What is phosphorus?
As you move across a period, atomic size tends to ____, and as you move down a group, atomic size tends to ______.
What are decrease and increase (in that order)?
What is the ability of an atom to attract an electron?
What is electronegativity?
This is the most electronegative element.
What is fluorine (F)?
This is the father of the periodic table.
Who is Dmitri Mendeleev?
The group that is the most reactive metals are the ______ while the most reactive nonmetals are the ____.
What are the alkali metals and halogens (in that order)?
This is why noble gases are not part of most periodic trends.
What is they are at the stable octet?
OR what is their valence shell is full?
OR What is they are so unreactive/inert that general rules don't apply to them?
Electronegativity tends to _____ as you move across a period and ____ as you move down a group.
What is increase and decrease (in that order)?
A positive ion is known as a ____, while a negative ion is known as ___.
What is cation and anion (in that order)?
Explain why ordering the elements by nuclear charge was better than by atomic mass.
What is the existence of isotopes that changed atomic mass but wouldn't change atomic number?
OR What is sometimes average atomic mass decreases? (Or something similar)
OR What is atomic number going up by 1s never changes?
Name 4 metalloids.
What are four of the following: Boron (B), Silicon (Si), Germanium (Ge), Arsenic (As), Antimony (Sb), Tellurium (Te), Astatine (At)?
[Partial credit accepted.] Do NOT accept credit for Aluminum (Al) or Polonium (Po).
The number of orbitals in a neutral atom corresponds to this singular number.
What is the period number?
(Do not allow credit for electron configuration, as that is more than one number except for H & He)
Place the following atoms in order of smallest ionization energy to greatest ionization energy:
Mg, Ba, Sr
What is Ba, Sr, Mg?
This is the most electropositive element.
What is Francium (Fr)?
This is the term that refers to the elements found in Group 1A through 7A (Groups 1, 2, 13, 14, 15, 16, 17).
What is "representative elements?"
This is the specific name of the metals in the strangely separate lower block of elements.
What are the "lanthanides and actinides?"
OR What are "inner transition metals?"
OR What are "rare earth metals?"
OR What are "rare earth elements?"
This is the main factor that affects trends in a period:
A) number of occupied energy levels (electron shielding)
B) energy released from electrons moving to lower energy levels (photon emission)
C) amount of neutral mass (number of neutrons)
D) nuclear charge (number of protons)
What is D?
OR What is nuclear charge?
OR What is number of protons?
Explain why electronegativity values decrease as you move down a group.
What is electron shielding (with more shells as you move down a group, electrons shield the pull from the protons, making it harder to attract electrons)
OR what is increasing "metallic character" (as you get closer to the most metal of metals, Francium, you want to give up electron(s) rather than take electron(s))?
OR What is getting farther away from Fluorine (F)?
The number of valence electrons in a neutral atom corresponds to this singular number.
What is group number?