chemistry chapter 6

In which pair is the one on the left larger than the one on the right?

Al, Al3+

Which group will have an electron configuration that ends in ns2?

Alkaline Earth metals

Which of the following would be the hardest to remove an electron from? Sb3-, Te2-, I-, Cs+, Ba2+

Ba2+

Which of the following would have the most protons? Sb3-, Te2-, I-, Cs+, Ba2+

Ba2+

Which of the following correctly shows elements in order of increasing electronegativity?

Cs < Sr < Pd < In < As < S < O < F

According to ____ periodic table, which is generally considered the "first" one made, the physical and chemical properties of elements are periodic functions of their atomic mass.

Dmitri Mendeleev's

Which element on the periodic table has the highest IE?

F

Which of the following correctly shows elements in order of increasing atomic radius?

F < O < S < As < In < Pd < Sr < Cs

Which of the following correctly shows elements in order of decreasing first ionization energy?

F > O > S > As > In > Pd > Sr > Cs

Which element on the periodic table has the largest atomic radius?

Fr

Which element on the periodic table has the smallest electronegativity?

Fr

Which element on the periodic table has the smallest first ionization energy?

Fr

Which metalloid is in the fourth period and the same group as Carbon?

Germanium

Which is the halogen that is in Period 5?

Iodine (I)

given credit for developing the first periodic table of elements

Mendeleev

developed the "law of octaves"

Newlands

Which of the following would be the largest ion? Sb3-, Te2-, I-, Cs+, Ba2+

Sb3-

Which of the following is true for ionization energy (IE)? Look at the definition and the trend.

The energy required to remove a valence electron increases to the right and up.

Which of the following is true for electronegativity (EN)? Look at the definition and the trend.

The nucleus's affinity for valence electrons in bonds increases to the right and up.

elements with two valence electrons

alkaline earth metals

noble gas

argon

halogen

astatine

inner transition metal

cerium

electronegativity

diagram 1

first ionization energy

diagram 1

atomic radius (size)

diagram 4

elements want to have this many outer electrons

eight

Which block on the periodic table contains the actinide series of elements?

f-block

All of the nonmetals on the periodic table are gases.

false

An atom that gains an electron will form a positive ion.

false

Elements in Group 2 are classified as alkali metals.

false

Nonmetals tend to conduct heat and electricity better than metalloids.

false

The best explanation for why atoms shrink in volume across a row is because you are adding new layers of valence electrons.

false

The electronegativity of elements increases from left to right and from top to bottom on the periodic table.

false

The same amount of energy is required to remove each electron sequentially from an atom.

false

The transition elements consist only of those that are found in block d of the periodic table.

false

a column on the periodic table

group or family

elements that gain one valence electron to form a complete octet

halogens

The change in atomic radius from left to right across a row is best explained by _____ , while the change in atomic radius down a group is best explained by _____ .

increased nuclear charge, increased shielding

Which is defined as the energy required to remove a valence electron from an atom of an element?

ionization energy

In what directions does electronegativity increase as you move across the periodic table?

left to right, bottom to top

Which of the following elements is a metal?

magnesium

Which category of elements is commonly used to make computer chips and solar cells due to their ability to conduct electricity only under certain conditions?

metalloids

elements used in electronics as semiconductors

metalloids

about 3/4 of the elements on the periodic table are classified as

metals

The elements classified as _____ have the property of _________ heat and electricity, and tend to appear as _______

metals, conduction, shiny

first to arrange the periodic table by atomic number rather than mass

moseley

Which scientist first arranged elements by atomic number?

mosely

a row on the periodic table

period

In what directions does atomic size (radius) increase as you move across the periodic table?

right to left, top to bottom

alkaline earth metal

strontium

Which of the following is true for ionic radius? Look at both the definition and the trend.

the size of a charged atom; increases to the left and down, ignoring group 4A/5A

Which of the following is true for atomic radius? Look at both the definition and the trend.

the size of a neutral atom; increases to the left and down

Which of the following is the best definition of electronegativity.

the tendency for an atom's nucleus to attract bonding electrons

Which of the following would have the most electrons? Sb3-, Te2-, Cs+, Ba2+

they all have the same number of electrons (isoelectronic)

Increasing amounts of energy are required to remove each electron sequentially from an atom.

true

Moving left to right across a period increases nuclear charge, thus causing the atom to shrink in size.

true

When an atom loses electrons, its radius gets smaller.

true