Which element is found in the group described by the statement below? This group contains poisonous, very reactive elements often used in bacteria killing or household cleaners.
Iodine (I)
Hydrogen (H)
Sodium (Na)
Helium (He)
Elements in Group 2 are known as the _____.
alkaline earth metals
halogens
metalloids
alkali metals
Which of the following is the poorest conductor of electricity? Which of the following is the poorest conductor of electricity?
Calcium (Ca)
Cobalt (Co)
Silicon (Si)
Fluorine (F)
Which two elements would have the most similar atomic radii?
Sodium and beryllium
Beryllium and magnesium
Aluminum and carbon
Boron and silicon
Why are metals good conductors of electricity?
Their neutrons are held very tightly.
Their outer electrons are held very loosely.
Their protons are held very loosely.
Their protons are held very tightly.
As you move from top to bottom on the periodic table, what generally happens to the metallic character of elements?
It increases.
It increases, then decreases.
It decreases.
It remains constant.
Which of the following elements is a main group element?
Manganese
Copper
Aluminum
Gold
Which group does NOT contain transition metals?
Group 9
Group 11
Group 5
Group 13
Which element will predictably carry a positive 1 charge when it becomes an ion?
Calcium
Bromine
Potassium
Gallium
Which element has the highest electronegativity?
Calcium
Carbon
Fluorine
Barium
As you move from left to right on the periodic table, what happens to the electronegativity?
It decreases, then increases with the noble gases
It increases.
It remains constant.
It decreases.
Which of the elements below has the smallest ionization energy?
bromine (Br)
aluminum (Al)
sodium (Na)
francium (Fr)
As you move from top to bottom on the periodic table, what generally happens to the ionization energy?
it increases
it remains constant
it decreases
it cannot be determined
As you move from left to right on the periodic table, what generally happens to the ionization energy?
it increases
it decreases
it cannot be determined
it remains constant
Which of these elements has the largest atomic radius?
Bromine (Br)
Barium (Ba)
Silicon (Si)
Astatine (At)
As you move from top to bottom on the periodic table, what happens to the atomic radius?
It decreases.
It increases.
It increases, then decreases.
It decreases, then increases.
