Chem Chapter 6 Test Flashcards
In electron dot structure which element could X represent?
Chlorine
As an electron from ground state to excited state the potential energy of the atom
Increases
The greatest absorbtion of energy occurs from electron moves from
1s to 3s
What principle energy level of an atom contains an electron with the lowest energy
n=1
What principle energy level can hold a max of 18 electrons
3 (2n^2)
If the electron config for silver is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1 4d10 what is the configuration for the ground state of the silver
2-8-18-18-1
If the electron configuration for Mg is 1s2 2s2 2p6 3s2 what is the configuration for Mg+2
2-8
If the electron config for silver is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1 4d10 which represents the electron configuration of a silver ion (Ag+) in the ground state?
2-8-18-18-2
Four valance electron on an atom in the ground state would occupy the
s and p sub levels only
Which of the following is the electron config of a neutral atom in the ground state with a total of six valance electrons
The electron config that adds up to 6
Given the electron config of an atom in the ground state 1s2 2s2 2s6 3s2 3p4 This element is found in the periodic table
Period 3 Group 16
Which electron config represents an electron in its excited state?
The electron config that jumps around
Which electron config is possible for a nitrogen atom in its excited state (Nitrogen electron config is 1s2 2s2 2p3)
1s2 2s2 2p2 3s1
What is the total number of orbitals in the third principle energy level?
9
What is the total number of occupied s orbitals in a atom of nickle in its ground state
4
What principle energy level has no f sub level?
3
The maximum number of electrons that a single orbital of the 3d sublevel may contain is
2
A neutral atom of an element has an electron configuration of 2-8-2. What is the total number of p electrons in this atom
6
Which atom in the ground state contains 1 completely filled orbital?
Oxygen
A Sulfur atom and a chlorine atom have the same number of
3s electrons
A neutral atom in the ground state contains 16 electrons. What is the total number of electrons in the 2p sublevel
6 electrons
What are the total number of sub levels that that contain electrons in an atom of zinc in the ground state (1s2 2s2 2p6 3s2 3p6 4s2 3d10)
7
Which orbital notation represents the second principle energy level of a silicon atom in the ground state (1s2 2s2 2p6 3s2 3p2)
The one completely filled
In the modern Periodic Table elements are arranged by what?
Atomic Number
An atom of an element contains 20 protons, 20 neutrons and 20 electrons, This element is
An alkali Metal
Which two elements have the most similar chemical properties?
Which ever elements is right below the other
Compare the atomic radius of a sodium atom, the atomic radius of a magnesium is smaller. The radius is primarily a result of the magnesium having a
Larger nucleus charge
According to the periodic table which element has the smallest atomic radius?
Whichever one is closest to the top right
Which has the largest atomic radius?
Whichever one is closest to the bottom left
As the element of group 16 are considered from top to bottom on the periodic table the atom radii
Increase and the ionization decreases
As the elements Li to F in period 2 are considered in succession, how do the relative electronegativity and atomic radius of each successive element compare
The relative electronegativity increases and the atomic radius decreases
The radius of a calcium ion is smaller than the radius of a calcium atom because the calcium ion contains the same nuclear charge and
fewer electrons
The S2- ion differs from the S0 atom in that the S2- ion has a
larger radius and more electrons
More than two thirds of the elements in the periodic table are
Metals
Which element is considered malleable? Gold Radon Hydrogen Sulfur
Gold
Which element has the most pronounce metallic prop
The one closest to the bottom left
Which period 3 element has the least metallic characteristic
The one farthest from the bottom left
The Table below shows some properties of elements A, B, C, D Element IE EN COHAE A Low Low Low B Low Low High C High High Low D High High High IE= Ionization Energy EN= Electronegativity COHAE= Conductor of Heat and Electricity What element is most likely non-metal?
C
A non-metal could have an electronegitivity of
2.6
Non-metals in the solid state are poor conductors of heat and tend to
Be brittle
As elements are considered from top to bottom in Group 15 which sequence in properties occur
Non-metal, metalloid, metal
The amount of energy required to remove the most loosely bound electron from an atom in the gaseous state is called
Ionization Energy
The highest ionization energies are found in group what?
18
Which element in group 2 has the greatest tendency to gain electrons
(F) or the closest one to the Noble Gases
Which atom will lose an electron most readily?
The ones closest to the bottom left
A reason why chlorine has a high ionization energy than sulfur is that chlorine has a
larger nuclear energy
If M represents an atom of an alkali metal, the correct formula for a compound of this atom with chlorine is
MCl
Which group of elements occur only as compounds in nature because they are extremely reactive
1
What group in the periodic table contains the elements of the alkaline earth family
2
Which aqueous salt solution has a color?
CuSO4(aq)
——–> =
Period
| | | | \/
Group
Ionization Rule
Larger= Top Right Lower= Bottom Left
Radius Rule
Larger= Bottom Left Lower= Top Right
0-2 is a
Metal
2 is a
Metalloid
More than 2 is a
Non-Metal
Periodic Law
When elements are arranged in order of increasing atomic Number, there is a repetition of their physical and chemical properties
Metals
Are generally good conductors of heat and electric current
Non metals
Poor conductors of heat and electric Currents
Metalloids
Generally has properties similar to those of metals and non metals
Alkali Metal
Elements in group 1A (comes from Arabic word “al aqali” meaning “the ashes”)
Alkali Earth Metals
Elements in group 2A
Halogens
Nonmetal group 7A (Combination of Greek Words “hals” meaning “Salt” And Latin word “genesis” meaning “to be born”)
What Elements are the most like halogens?
Salt, Chlorine, Bromine, and Iodine
Noble Gases
Elements in Group 8A on the Periodic Table
Representative Elements
Elements in Groups 1A to Group 7A are often referred to as Transition Metals because they display a wide range of physical and chemical properties
Transition Metals
Group B elements that are usually displayed int eh main body part of the periodic table
Inner Transition Metals
Elements that appear below the main body of the periodic table
Atomic Radius
One half of the distance between the nuclei of two atoms of the same element when the atoms are joined
Ion
Atom or group of atoms with a positive and negative charge
Cation
Ion with a positive Charge
Anion
Ion that is negatively charged
Ionization Energy
Energy required to remove an electron from an atom
Electronegitvity
Ability of an atom of an element to attract electrons when the atom is in a compound
Electron Affinity
The energy change by a gaseous atom or ion to gain an electron
Diatomic Elements
Hydrogen (H2) Nitrogen (N2) Oxygen (O2) Fluorine (F2) Chlorine (Cl2) Iodine (I2) Bromine (Br2)
