Chemistry Periodic Trends Retake Test Info (not done yet)
which if the following elements have a tendency to gain electrons? A. chlorine, oxygen, fluorine B. nitrogen, oxygen, aluminum C. chlorine, fluoride, gallium D. nickel, iodine, helium
A. chlorine, oxygen, fluorine
which nonmetal is the most reactive A. fluorine B. chlorine C. bromine D. iodine
A. fluorine
which is responsible for elements being more reactive? A. having high ionization energies B. having low ionization energies C. having low electronegativities D. having a full outer energy level
A. having high ionization energies
which of the following has the largest ionization energy A. Sodium B. Potassium C. Beryllium D. Barium
C. Beryllium
which element would you expect to behave most like sodium? A. barium B. magnesium C. cesium D. hydrogen
C. cesium
which of the following elements is extremely reactive and soft enough to cut with a knife A. Barium B. Hydrogen C. Aluminum D. Cesium
D. Cesium
which of the following has the largest atomic radius A. Oxygen B. Neon C. Boron D. Lithium
D. Lithium
which element is the most reactive A. barium B. hydrogen C. aluminium D. cesium
D. cesium
which correctly lists four atoms from smallest to largest atomic radius? A. iodine, bromine, chlorine, fluorine B. flourine, iodine, bromine, chlorine C. silicon, phosphorus, sulfur, chlorine D. chlorine, sulfur, phosphorus, silicon
D. chlorine, sulfur, phosphorus, silicon
which alkali metal would be most reactive in water and why?
Francium because its one outer electron is farthest from the nucleus compared to the other metals
which family has the lowest electronegativites
alkali metals
when do metalloids act like metals
at high temperatures
metals tend to form
cations
based on the following electron configuration , [Kr] 5s2 4d10 5p5, this element will most likely __________
gain one electron, to form an anion with a 1- charge
name of the family of elements who's electron configuration ends in s2p5
halogens
a cation is formed when an atom ______ electrons
loses
Compared to the atomic radius of a sodium atom, the atomic radius of a potassium atom is larger. The larger radius is primarily a result of the potassium atom having ________
more energy levels
which group on the periodic table are the least reactive
noble gases
the elements calcium and strontium have similar chemical properties because they both have the same ________
number of outer electrons
valence electrons are electrons in the
s and p orbitals
which best explains why cations are smaller than the atoms from which they are formed?
the metallic atoms loses electrons, resulting in loss of an entire energy level
an ion with a charge of +2 has _______
two more protons than electrons