Atomic Structure Final Examination Review
TRUE/FALSE
The elements in a row or period all have the same number of energy levels. ANS: T
Columns going up and down are called families or groups Columns going up and down are called families or groups. The elements in a group have the same chemical stability. ANS: T
The term atom was first used by the: Ethiopians Greeks British Romans
ANS: B
The smallest particle that has all the properties of an element is a(n) _____: Cell Electron Proton atom
ANS: D
What are the fundamental particle of an atom? quark, positron, negatron nucleon, electron, proton proton, neutron, electron proton, neutron, quark
ANS: C
The chemical element is determined by the number of _____ in the atom: Protons Neutrons Electrons valence number
ANS: A
An atom in a normal state has an electrical charge of ____: 1 Positive Negative
ANS: A
The binding energies or energy levels of electrons are represented by their ______: atomic numbers atomic mass shells isotopes
When an atom has the same number of protons, but a different number of neutrons, it is called an _________: Isomer Isotope Isobar Isotone
ANS: B
When an atom has the same A, but a different number of protons, it is called an _________: Isomer Isototope Isobar Isotone
ANS: C
When atoms of various elements combine, they form _____. Isotopes Compounds Molecules Ions
ANS: C
When molecules of various elements combine, they form _____. Isotopes Compounds Molecules Ions
ANS: B
An atom that loses or gains one or more electrons is a(n) _____: Isotope Isobar Isomer Ion
ANS: D
The maximum number of electrons that can exist in an electron shell is calculated with the formula ____. 2x 2n 2n2 2/n2
ANS: C
An atom in a neutral state has the same number of ______ and electrons. Quarks Neutrons valence e- protons
ANS: D
The innermost electron shell is the ______-shell: K
ANS: D
The atomic number of an atom is symbolized with the letter ____: X Z n
ANS: C
The atomic mass of an atom is symbolized with the letter ____: X Z n
ANS: A
Two identical atoms that exist at different energy states are called ______: Isomer Isotope Isobar Isotone
ANS: A
During beta emission an atom releases ______: Electrons Photons Protons neutrons
ANS: A
The only difference between x-rays and gamma rays is their ________: Energy Source Size Name
ANS: B
Aluminum has an atomic number of 13. How many protons does it have? 25 89 Need more info
ANS: A
The force of attraction between the nucleus and an orbital electron is called the electron ___: Valence Transition number Binding energy Nuclear energy
ANS: C
The chemical properties of an atom are primarily controlled by its: number of protons Number of neutrons Atomic mass Valence e-
ANS: A
An atom that loses an orbital electron from the electrical influence of the nucleus has undergone: radioactive decay Subluxation Ionization Covalent bond
ANS: C
A neutral atom that loses an electron by ionization is termed a: negative atom Positive atom Negative ion Positive ion
ANS: D
The chemical bonding when two or more atoms share electrons is termed: ionic bonding Polar bonding Covalent bonding Valence bonding
ANS: C
The octet rule states that the most chemically stable atoms have an outer shell configuration with: Two e- Three e- Seven e- Eight e-
ANS: D
About 99% of the atom’s mass is located within the: orbital shell K-shell Nucleus Alpha particle
ANS: C
The atomic particle which has a weight of 1amu and carries no charge is called a/an: Proton Neutron Electron photon
ANS: B
Nuclides having the same atomic number but different atomic masses are termed: Isotones Isotopes Isobars Isomers
ANS: B
Two or more chemicals with the same physical formula, but having different chemical properties, are termed: Isotones Isotopes Isobars Isomers
ANS: C
The force of attraction between the nucleus and an orbital electron is called the electron: Valence transition number Binding energy Valence number
ANS: C
The schematic display most often employed to represent the structure of the atom was developed by: Charles Dalton Neils Bohr Micheal Crookes Charles Darwin
ANS: B