Periodic Table Review

Ga, Pb, Ge, P, S, Cl, I, He, Xe, U

Which of the above elements is a noble gas? He, Xe

What is the charge of the following ion: Lead IV

+4 (Roman numeral tells you the positive charge)

What are group 1 elements called?

Alkali Metals

How did Henry Moseley arrange elements on the Periodic Table?

Increasing atomic NUMBER

Place each of the following groups of elements in order of DECREASING atomic radius.

Li, O, C, F, N

Li, C, N, O, F

What is the charge of the following ion: sodium

+1 (b/c it is in group 1)

State the group trend (moving top to bottom down the groups) for first ionization energy.

DECREASES

Place each of the following groups of elements in order of DECREASING atomic radius.

Mg, Cl, Na, P

Na, Mg, P, Cl

________ is the measure of the ability of an atom in a chemical compound to attract electrons.

Electronegativity

What is the ending of all monatomic anions?

ide

Suppose lithium formed an ion. How many electrons and protons does a lithium ion have?

Li+1 (lost 1 e-) 3 protons & 2 electrons

Li, Ca, Y, Mn, Hg, Ga, Pb, Ge, P, S,

Which of the above elements is a alkaline earth metal?

Ca

Arrange the following elements in order of DECREASING first

ionization energy: Mg, Ba, Be

Be, Mg, Ba

What group of elements are considered the most stable?

Noble Gases

State the group trend (moving top to bottom down the groups) for electronegativity.

DECREASES

Place each of the following groups of elements in order of DECREASING electronegativity.

Po, Se, O

O, Se, Po

_____________ is the energy required to remove an electron from an atom.

first ionization energy

where would you find elements with similar properties? Group or Period

GROUP

Place each of the following groups of elements in order of DECREASING atomic radius.

Li, Rb, K, Na

Rb, K, Na, Li

List 4 properties of metals.

Luster Good conductors of electricity Ductile Malleable High Melting points Solid, except Hg is a liquid Lose electrons

State the period trend (moving left to right across the periods) for first ionization energy.

INCREASES

What is the atomic number of nickel?

28

Arrange the following elements in order of DECREASING first

ionization energy: Li, O, C, K, Ne, F

Ne, F, O, C, Li, K

1. How did Dmitri Mendeleev arrange elements on the Periodic Table?

Increasing atomic MASS

What is the charge of the following ion: bromide

-1 (b/c it is in group 17)

What is the name of the Cl-1 ion?

ChlorIDE

State the period trend (moving left to right across the periods) for atomic radius.

DECREASES

What is the difference between a group and a period? List the number of groups and period.

Group = columns (#1-18) Periods = rows (#1-7)

What element is in group 2 and period 2?

Be

How are the elements arranged on the Periodic Table today?

Increasing atomic NUMBER

What is an anion? Explain how they are formed.

Anion = negative ion b/c electron(s) were GAINED

What is the atomic mass of lithium?

6.941 amu

Where are the most active metals located?

Lower left corner of group 1 (Fr)

The majority of elements in the periodic table are (metals or nonmetals).

Metals

Ga, Pb, Ge, P, S, Cl, I, He, Xe, U

Which of the following is a rare earth metal? U

What is the charge of the following ion: aluminum

+3 (b/c it is in group 13)

What element is in group 7 and period 4?

Mn

What is the charge of the following ion: magnesium

+2 (b/c it is in group 2)

Arrange the following elements in order of DECREASING first

ionization energy: Li, B, Rb, F, C

F, C, B, Li, Rb

Suppose nitrogen formed an ion. How many electrons and protons does a nitrogen ion have?

N-3 (gains 3 e-) 7 protons & 10 electrons

Li, Ca, Y, Mn, Hg, Ga, Pb, Ge, P, S, Cl, I, He, Xe, U

Which of the above elements is a non-metal?

P, S, Cl, He, I, Xe

State the period trend (moving left to right across the periods) for electronegativity.

INCREASES

What is the atomic number of bromine?

35

Where are metalloids used?

Electronics- computers, calculators

Group 17 elements are called?

Halogens

List 4 properties of nonmetals.

No Luster Not good conductors of electricity Not Ductile Not Malleable Low Melting points Gain electrons

Place each of the following groups of elements in order of DECREASING electronegativity.

Ga, Br, Ra, Ca

Br, Ga, Ca, Ra

Li, Ca, Y, Mn, Hg, Ga, Pb, Ge, P, S,

Which of the above elements is an alkali metal? Li

_____________ is half the distance between the nuclei of identical atoms joined in a molecule.

atomic radius

State the group trend (moving top to bottom down the groups) for atomic radius.

INCREASES

Nonmetals can be solids, a liquid or 11 are gases under ordinary conditions. List the gases & liquid.

Gases = H, N, O, F, Cl & the noble gases

Liquid = Br

What are group 2 elements called?

Alkaline Earth Metals

A negative ion is (larger / smaller) than its parent atom.  Why?

LARGER; b/c the atom GAINED electron(s)

Li, Ca, Y, Mn, Hg, Ge, P, S, Cl, I,

Which of the above elements is a halogen? Cl, I

What is a metalloid?

Element that has properties of BOTH metals and nonmetals

What is the name of the O-2 ion?

OxIDE

Where are the most active nonmetals located?

Upper right corner of group 17 (F)

As you go from left to right across the periodic table, the elements go from (metals / nonmetals) to (metals / nonmetals).

Metals; nonmetals

Li, Ca, Y, Mn, Hg, Ga, Pb, Ge, P, S,

Which of the above elements is a metalloid? Ge

The most active element in Group 17 is?

Fluorine (F)

What is a cation? Explain how they are formed.

Cation = positive ion b/c electron(s) were LOST

Group 18 elements are called? Why?

Noble Gases; b/c the contain 8 electrons in their outer energy level which gives them a stable electron configuration

A positive ion is (larger / smaller) than its parent atom.  Why?

SMALLER; b/c the atom LOST electron(s)

The majority of elements in the periodic table are (metals / nonmetals).

Metals

Compounds that contain elements from group 17 are commonly called?

Salts

Suppose magnesium formed an ion. How many electrons and protons does a magnesium ion have?

Mg+2 (lost 2 e-) 12 protons & 10 electrons

What is the difference between a monatomic ion and a polyatomic ion?

Monatomic = ion formed from a single atom

Polyatomic = a group of bonded atoms with a charge

An element with both metallic and nonmetallic properties is called a __________

Metalloid

Suppose nitrogen formed an ion.

a) What is the charge of the N ion? _________

b) How many electrons does an N ion have?________

c) How many protons does an N ion have?_________

d) Write the name for the N ion.__________

-3

10

7Nitride

Place the ionic charges for the following groups on the Periodic Table: group 1, group 2, group 3-12, group 13, group 14, group 15, group 16, group 17 and group 18

+1 +

2Mostly+2

+3

+4

-3-2-1

0

Li, Ca, Y, Mn, Hg, Ga, Pb, Ge, P, S, Cl, I, He, Xe, U

Which of the above elements is a metal?

Li, Ca, Y, Mn, Hg, Ga, Pb, U

Elements of Group 3-12 are called?

Transition Metals

The noble gases contain _______ electrons in their outer energy level.

8

Metals are usually solids under ordinary conditions. List one exception.

Hg (mercury) is a liquid

What are groups 3-12 elements called?

Transistion Metals

Elements in the periodic table are arranged according to their ___________

Increasing atomic number

Ca, Y, Mn, Hg, Ga, Pb, Ge, P, S, Cl,

Which of the above elements is a transition metal?

Y, Mn, Hg

As you go from left to right across the periodic table, the elements go from (metals / nonmetals) to (metals / nonmetals).

Metals; nonmetals