Trends in the Periodic Table Flashcards
The atomic radius of magnesium is smaller than the atomic radius of sodium. This is mainly because magnesium atom has
a. a smaller net nuclear charge
b. a larger net nuclear charge
c. more principal energy levels
d. fewer principal energy levels
d) fewer principal energy levels
The alkali metals are low melting. Which of the following alkali metal is expected to melt if the room temperature rises to 30°C?
a. Cs
b. K
c. Rb
d. Na
a) Cs
The ______ have the lowest first ionization energies of the groups listed.
a) halogens
b) alkali metals
c) alkaline earth metals
d) noble gases
b) alkali metals
what property decreases going down the group of alkali earth metals?
a) ionic radius
b) atomic radius
c) first ionization energy
d) atomic mass
c) first ionization energy
Electronegativity…….from left to right across a period and…….from top to bottom down a group.
a) increases, decreases
b) decreases, increases
c) decreases, decreases
d) increases, increases
increases
decreases
Which of the following group VIIA elements has the lowest tendency to gain electrons?
a) chlorine
b) flourine
c) bromine
d) iodine
d) iodine
The atoms of the most reactive metals have:
a. small atomic radii and low ionization energies
b. large atomic radii and high ionization energies
c. large atomic radii and low ionization energies
d. small atomic radii and high ionization energies
b) large atomic radii and high ionization energies
The number of valence electrons in an atom with the configuration 1s2 2s2 2p6 3s2 3p4 is:
a. 16
b. 6
c. 4
d. 2
b) 6
Which is the most reactive non-metal on the PT of the Elements?
a. Fr
b. Cl
c. F
d. I
c.) F
Of the following elements, which has the largest first ionization energy?
a. O
b. B
c. P
d. N
c.) N
In electron affinity, the less valence electrons an atom has, ____
a. The less likely it will gain electrons
b. The more likely it will gain electrons
c. The more time it takes to complete an orbital spin
d. The less likely it will lose electrons
a) the less likely it will gain electrons
Which of the following will have the highest boiling point? Cl2, P4, S8, O2, N2
a. P4
b. S8
c. Cl2
d. O2
c.) Cl2
Which of the following correctly lists the five atoms in order of increasing size (smallest to largest)?
a. F ; K; Ge; Br; Rb
b. F; K; Br; Ge; Rb
c. F; Br; Ge; K; Rb
d. F; Ge; Br; K; Rb
c.) F, Br, Ge, K, Rb
Which equation correctly represents the first ionization of aluminium?
a. Al+ (g) + e- —> Al(g)
b. Al (g) + e- —> Al-(g)
c. Al (g) —> Al-(g) + e-
d. Al (g) —> Al+(g) + e-
d. Al (g) —> Al+(g) + e-
Which of the following statements apply to most non-metals? They have
a. low ionization energy and poor electrical conductivity
b. high ionization energy and good electrical conductivity
c. low ionization energy and good electrical conductivity
d. high ionization energy and poor electrical conductivity
d.) high ionization energy and poor electrical conductivity
