periodic table review
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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. - PowerPoint PPT PresentationTRANSCRIPT
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