Unit 2 Part 1 Question Preview (ID: 28102)
Parts Of The Atom, Atomic Theory, Light, Electron Configuration, And Average Atomic Mass.
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When a neutral atom gains five electrons, it becomes an ion with a charge of:
a) +3
b) -3
c) +5
d) -5
Which of the following has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d8
a) Zn
b) Cu
c) Ni
d) Co
What information is needed in order to determine if a particle with 4 protons is an atom or an ion?
a) Number of Neutrons
b) Number of Electrons
c) Atomic Mass
d) Atomic Number
How many protons are in an atom of Sulfur-32?
a) 16
b) 15
c) 14
d) 13
Which of the following statements explains the Pauli Exclusion Principle?
a) All atoms react to achieve a stable octet
b) Electrons have like spins
c) Electrons with the same spin cannot be in the same suborbital
d) Each suborbital in the same energy level gets 1 electron before any other gets a second
Ions with a positive charge are called:
a) Protons
b) Anions
c) Electrons
d) Cations
Which element is found in the f-block on the periodic table?
a) Sodium (Na)
b) Sulfur (S)
c) Uranium (U)
d) Iron (Fe)
How many electrons are in an uncharged atom of lithium?
a) 3
b) 4
c) 5
d) 6
The lowest possible energy state of an electron is called its ________ state.
a) Excited
b) Base
c) Ground
d) Neutral
Two different isotopes of the same uncharged element must have the same number of:
a) Neutrons and electrons
b) Neutrons and protons
c) Protons and electrons
d) Protons and nucleus
Which of the following statements explains Hund’s rule?
a) All atoms react to achieve a stable octet.
b) Electrons with the same spin cannot be in the same suborbital
c) Electrons have like spins
d) Each suborbital in the same energy level gets 1 electron before any other gets a second
Which element has the outer electron configuration of 5d2?
a) Hafnium (Hf)
b) Germanium (Ge)
c) Titanium (Ti)
d) Zirconium (Zr)
The atomic number is equal to:
a) The number of protons
b) The number of neutrons
c) The number of protons plus electrons
d) The number of protons plus neutrons
The p oribtal consists of ______________ sub-orbital(s).
a) 1
b) 3
c) 5
d) 7
An atom becomes an ion by__________?
a) Gaining or losing electrons
b) Having more protons than neutrons
c) Having fewer protons than neutrons
d) Gaining or losing protons
As frequency of light increases...
a) Wavelength gets longer
b) Energy decreases
c) Wavelength gets shorter
d) Energy doesn't change
Who is known for the Saturian model?
a) Niels Bohr
b) John Dalton
c) Hantaro Nagaoka
d) James Chadwick
Who had the first 5 part atomic theory?
a) Niels Bohr
b) J.J. Thomson
c) James Chadwick
d) John Dalton
Who discovered the nucleus?
a) Niels Bohr
b) J.J. Thomson
c) Ernest Rutherford
d) John Dalton
Who is known for the plum pudding model?
a) Niels Bohr
b) J.J. Thomson
c) Ernest Rutherford
d) Hantaro Nagaoka
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