Trends and Elements
What group of the Periodic Table contains the noble gases?
Group 18
Which list of elements includes a metal, a metalloid, and a noble gas
(1) Rb, Cl, Ne
(2) Sr, Si, Rn
(3) Rn, Cl, Ne
(4) Si, Rb, Sr
(2) Sr, Si, Rn
Indicate which element in the pair has the greater atomic radius; sodium or lithium.
sodium
Which element has a greater ionization energy; lithium or boron?
boron
Which element has a greater electronegativity, Cl or F?
Fluorine (F)
Which period contains the greatest number of metals?
Period 4
Which Group 15 element is classified as a metal?
Bi
Indicate which element has the greater atomic radius; strontium or magnesium.
strontium
Which element has the greater ionization energy; magnesium or strontium?
magnesium
Which element has a greater electronegativity, C or N?
Nitrogen (N)
As we move down the elements in Group 16, the electronegativity of the elements
decreases
Which of the following elements are classified as a metalloid? Antimony or Carbon
Antimony
Indicate which element has the greater atomic radius; carbon or germanium.
germanium
Which element has the greater ionization energy: cesium or aluminum?
aluminum
Which element has a greater electronegativity, Mg or Ne?
Magnesium (Mg)
Which is the most active nonmetal in the Periodic Table of Elements?
Fluorine (F)
Which list represents the classification of the elements nitrogen, neon, magnesium, and silicon, respectively?
(1) metal, metalloid, nonmetal, noble gas
(2) nonmetal, noble gas, metal, metalloid
(3) nonmetal, metalloid, noble gas, metal
(4) noble gas, metal, metalloid, nonmetal
(2) nonmetal, noble gas, metal, metalloid
Which element has the greater atomic radius; selenium or oxygen.
selenium
Arrange the following elements in order of increasing ionization energy; beryllium, magnesium, and strontium.
strontium, magnesium, and beryllium
Which element has a greater electronegativity, As or Ca?
Arsenic (As)
An atom of an element contains 20 protons, 20 neutrons, and 20 electrons. The element is what type of metal? (Hint: Not metals, non-metals or metalloids.)
an alkaline earth metal
Alkali metals, alkaline earth metals, and halogens are found respectively in Groups
a) 1, 2, and 14
b) 1, 2, and 18
c) 1, 2, and 17
d) 2, 13, and 17
c) 1, 2, and 17
Explain why fluorine has a smaller atomic radius than chlorine.
because fluorine has fewer electrons
Arrange the following elements in order of increasing ionization energy; Na, Al, and S.
Na, Al, and S
Which of the following properties does lithium have a larger value than potassium, Ionization Energy, Atomic Radius, Electronegativity, or Ionic Radius?
ionization energy and electronegativity