Answers26-27 CFISD TX-Chemistry A CRPeriodic Trends

Periodic Trends Answers

0 verified answers2 views
1
Free Preview

Which best describes ionization energy?

A
energy needed to add an electron to a neutral atom in the gas phase
B
energy needed to add an electron to a neutral atom in the liquid phase
C
energy needed to remove an electron from an atom or ion in the gas phase
D
energy needed to remove an electron from an atom or ion in the liquid phase
2
Free Preview

The graph below shows the electronegativities of the elements in the periodic table.Which would least strongly attract electrons from other atoms in a compound?

Question illustration
A
elements of group 1
B
elements of group 2
C
elements of group 15
D
elements of group 17
3

Which element has the smallest atomic radius?

A
calcium
B
potassium
C
scandium
D
titanium
4

How does a lithium cation compare to a lithium atom?

A
The cation is larger.
B
The cation has the same radius.
C
The cation is smaller.
D
The cation has the same charge.
5

Electronegativities of the elements Be, Mg, Ca, and Sr follow a specific trend within their group. Based on this trend, the atoms of which element will have the least attraction for an electron?

A
Be
B
Mg
C
Ca
D
Sr
6

When electrons are added to the outermost shell of a carbon atom, it forms

A
an anion that has a larger radius.
B
an anion that has a smaller radius.
C
a cation that has a larger radius.
D
a cation that has a smaller radius.
7

Among the elements of the main group, the first ionization energy increases

A
from left to right across a period.
B
from right to left across a period.
C
when the atomic radius increases.
D
down a group.
8

Which correctly summarizes the trend in electron affinity?

A
It tends to be very high for group 2.
B
It tends to be more negative across a period.
C
It tends to remain the same across periods.
D
It tends to be more negative down a group.
9

Which element would most likely have an electron affinity measuring closest to zero?

A
Na
B
Al
C
Rb
D
Ar
10

The most negative electron affinity is most likely associated with which type of atoms?

A
large nonmetal atoms
B
small nonmetal atoms
C
large metal atoms
D
small metal atoms

Did you find these answers helpful?

More from this Course

Quiz
16 verified answers

Periodic Trends

Quiz
10 verified answers

Periodic Trends

Quiz
10 verified answers

Periodic Trends