Chemistry 10/5

As you move down the periodic table atoms get bigger. This is because ____________.

The atoms have more energy levels

Which group on the periodic table is known as the alkali metals?

1A

Based on electronegativity trends in the periodic table, which of the following is the most likely value for the electronegativity of silicon?

2.03

How many periods are in the periodic table?

7

Which of the following is has the largest atomic radius, Carbon, Nitrogen, Aluminum, or Neon?

Aluminum

The element with the lowest electronegativity in Period 3 is -

Ar (Argon)

Which statement correctly and completely identifies a trend?

Atomic radius decreases across a period and increases down a group.

Atoms with large ionization energies are __________________. More likely to lose an electron More likely to form positive ions Lacking valence electrons Less likely to lose an electron

Less likely to lose an electron

Identify the element as a metal, metalloid, or nonmetal. - lithium

Metal

Identify the element as a metal, metalloid, or nonmetal. - zinc

Metal

Identify the element as a metal, metalloid, or nonmetal. - germanium

Metalloid

Which accurately describes nonmetals? Often used in computer parts Both malleable and ductile Poor conductors of electricity Always solid at room temperature

Poor conductors of electricity

The alkaline earth metal with the lowest electronegativity is Fr Mg Ra Li

Ra

The atom with the largest atomic radius in Group 18 is -

Rn (Radon)

Is the electronegativity of barium larger or smaller than that of strontium?

Smaller

Which of the following will have a larger radius than Zinc?

Sr (Strontium)

ionization energy

The amount of energy required to remove an electron from an atom

Where on the periodic table would you expect to find atoms with the highest Ionization energy? Upper right Lower right Lower left Upper left

Upper right

What is a group in the periodic table? a horizontal row of elements in the periodic table a column on the periodic table

a column on the periodic table

Dimitri Mendeleev placed the elements in order of increasing atomic mass sublevel metallic property atomic number

atomic mass

Metals have the largest -

atomic radius only

Which has a larger ionization energy lithium or beryllium.

beryllium (Be)

Which of the elements below would be the easiest to remove an electron? calcium phosphorous magnesium aluminum

calcium

As atoms of elements in group 16 are considered in order from top to bottom, the electronegativity of each successive element....

decreases

Atomic radius generally increases as we move __________.

down a group and from right to left across a period

Which atom has the largest atomic radius?

francium

atomic radius

half the distance between two nuclei of the same element

Atoms that have a high electronegativity, _______________.

hold on to their electrons more tightly.

Electronegativity is...

how good an atom is at attracting electrons

Ionization energy is...

how much energy it takes to remove an electron from an atom

Periodic Table - Electronegativity

https://docs.google.com/document/d/1cmQqGBEULhVJQRuADeoiP8vdnjTUivVkcFNEUPHKwjo/edit?usp=sharing

Periodic table

https://www.wuwm.com/sites/wuwm/files/styles/x_large/public/201912/AdobeStock_238869971.jpg

Electronegativity __________ from left to right within a period and __________ from top to bottom within a group.

increases, decreases

Which of the following is NOT a property of metals? malleable good conductor of heat and electricity ductile liquid at room temperature

liquid at room temperature

Which of the following is not a transition metal? magnesium, titanium, chromium, mercury

magnesium (Mg)

Is potassium a metal, nonmetal, metalloid, or something else?

metal

What is electronegativity?

the ability of an atom to attract electrons when the atom is in a compound

As you move across the periodic table atoms tend to get smaller because, ______________.

the atoms have more protons.

atomic number

the number of protons in the nucleus of an atom

mass number

the sum of the number of neutrons and protons in an atomic nucleus

Which section of the periodic table includes the elements copper, nickel, and iron?

transition metals

Metals are good conductors of heat and electricity.

true

Element with highest electronegativity

Fluorine (F)

Which has a larger atomic radius, At atom or Po?

Po

Group

A column on the periodic table

period

A horizontal row of elements in the periodic table

Which period or group includes uranium?

Actinide series

Which of the following is NOT a metalloid? Al Po B Si As

Al

Arrange oxygen, fluorine, barium, silicon, sulfur in order of increasing electronegativity.

Ba, Si, S, O, F

Which of the following is the most electronegative? Ca Be Mg Sr

Be

The alkaline earth metal with the highest ionization energy is

Beryllium

Which element listed below should have chemical properties similar to fluorine (F)? Li, Si, Br, Ne, Al

Br

Which of the following will have a lower ionization energy than Scandium (Sc)?

Calcium (Ca)

Which of the following will have a higher electronegativity than arsenic (As)?

Carbon (C)

Which of the elements below has the largest atomic radius? Lithium Astatine Fluorine Cesium

Cesium

Which has the greater electronegativity: Cl or Al?

Chlorine (Cl)

Which of the following is a Halogen? B In Cl Fe

Cl

The electronegativity of Cl is the highest in Period 2. Why?

Cl is the smallest and has the greatest effective nuclear charge

Hypothetical elements Z and X are compared. Element Z has a larger atomic radius than Element X. Based on this you could say:

Element Z is further to the left side of the periodic table AND/OR Element X is closer to the top of the periodic table

Elements Z and X are compared. Element Z is smaller than Element X. Based on this you could say: Element X is closer to the top of the periodic table Element Z is further to the right side of the periodic table Element X is further to the right side of the periodic table Element Z and X are probably in the same group

Element Z is further to the right side of the periodic table

Metals

Elements that are good conductors of electric current and heat (Left side of the periodic table).

Nonmetals

Elements that are poor conductors of heat and electric current (Right side of periodic table).

Metalloids

Elements that have properties of both metals and nonmetals.

Which has the greater electronegativity: H (Hydrogen) or F (Flourine)?

F (Flourine)

The element with the largest electronegativity in the halogens is -

Flourine (F)

Which of the following is the most Electronegative, Gallium, Phosporous, Fluorine, or Sulfur?

Fluorine

Element with largest atomic radius

Francium (F)

Which of the following will have a larger radius than silicon? Nitrogen Fluorine Gallium Phosphorous

Gallium

alkali metals

Group 1a

alkaline earth metals

Group 2a

Halogens

Group 7a

noble gases

Group 8A

Which of the following are poor conductors of heat and electricity? Transition elements Halogens Alkaline earth elements Metalloids

Halogens

Which of the following elements have the highest electronegativity? Noble gases Alkali metals Lanthanides Halogens Alkaline earth metals Transition metals

Halogens

Element with highest ionization energy

Helium (He)

Which has a smaller ionization energy sodium or potassium.

K (potassium)

Which has the greater electronegativity: N (Nitrogen) or C (Carbon)?

N (Nitrogen)

Name two elements that have properties similar to those of the element potassium.

Na, Li, Rb, Cs, Fr

Which element below requires the most energy to remove an electron? Ne O N Fr F

Ne

Which of the following is the least electronegative? Ne F O Fr N

Ne

Which periodic group has the smallest atomic radius?

Noble Gases

Identify the element as a metal, metalloid, or nonmetal. - fluorine

Nonmetal

Identify the element as a metal, metalloid, or nonmetal. - phosphorus

Nonmetal