Why are metals good conductors of electricity?
Their protons are held very loosely.
Their outer electrons are held very loosely.
Their protons are held very tightly.
Their neutrons are held very tightly.
Elements in Group 2 are known as the _____.
halogens
alkaline earth metals
alkali metals
metalloids
Which group does NOT contain transition metals?
Group 13
Group 9
Group 5
Group 11
As you move from left to right on the periodic table, what generally happens to the boiling point of elements?
It decreases, then increases.
It remains constant.
It increases, then decreases.
It decreases.
As you move from top to bottom on the periodic table, what happens to the atomic radius?
It decreases.
It increases.
It decreases, then increases.
It increases, then decreases.
Which element is a transition group metal and likely to exist in many different forms?
Manganese
Barium
Phosphorous
Rubidium
As you move from top to bottom on the periodic table, what generally happens to the metallic character of elements?
It increases, then decreases.
It remains constant.
It increases.
It decreases.
Given the following information, which element(s) are most likely to lose electrons? I. Iodine is a member of Group VII (halides). II. Strontium is located in the second column of the periodic table. III. Selenium has six valence electrons.
Selenium
Iodine
Strontium
Selenium and strontium
Which element will predictably carry a positive 1 charge when it becomes an ion?
Bromine
Calcium
Potassium
Gallium
Which of the following elements has the same number of valence electrons as aluminum?
silicon
magnesium
zinc
boron
Which element listed is likely to be the most reactive?
strontium
magnesium
beryllium
barium
What is an electron shell?
The electron's protective outer layer
The exact location of an electron
A hard container holding electrons close to the nucleus
The space around the nucleus where the electrons are found
What is ionization?
removing protons from an atom
adding neutrons to an atom
removing electrons from an atom
adding protons to an atom
Which of these elements has the smallest atomic radius?
Arsenic (As)
Antimony (Sb)
Phosphorus (P)
Nitrogen (N)
Electronegativity is the ability of an atom to _____
repel protons.
repel electrons.
attract neutrons.
attract electrons.
Which of these elements has the largest atomic radius: argon, phosphorus, aluminum, sodium or magnesium?
Argon (Ar)
Phosphorus (P)
Sodium (Na)
Aluminum (Al)
As you move from left to right on the periodic table, what generally happens to the ionization energy?
it increases
it decreases
it remains constant
it cannot be determined
Which of the elements below has the smallest ionization energy?
sodium (Na)
aluminum (Al)
bromine (Br)
francium (Fr)
Which of the following is the poorest conductor of electricity? Which of the following is the poorest conductor of electricity?
Cobalt (Co)
Fluorine (F)
Silicon (Si)
Calcium (Ca)
Which element has the highest electronegativity?
Carbon
Fluorine
Calcium
Barium
Which of these elements has the largest atomic radius?
Astatine (At)
Silicon (Si)
Bromine (Br)
Barium (Ba)
In which energy level is the outer electron in rubidium located?
37
2
85
5
As you move from left to right on the periodic table, what happens to the electronegativity?
It increases.
It remains constant.
It decreases.
It decreases, then increases with the noble gases
Which of the following elements is a main group element?
Gold
Copper
Aluminum
Manganese
Which of the following will react violently with water to form a base?
Potassium (K)
Calcium (Ca)
Chlorine (Cl)
Cobalt (Co)
As you move from top to bottom on the periodic table, what generally happens to the ionization energy?
it remains constant
it increases
it decreases
it cannot be determined
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.
Hydrogen (H)
Sodium (Na)
Iodine (I)
Helium (He)
Which two elements would have the most similar atomic radii?
Beryllium and magnesium
Boron and silicon
Aluminum and carbon
Sodium and beryllium