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Atoms, Isotopes, and Ions Flashcards | StudBud
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Atoms, Isotopes, and Ions
Atoms, Isotopes, and Ions
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Simple introduction to atoms, isotopes, ions, and the periodic table.
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1
The atomic number of a neutral atom is equal to the number of_______ it contains
electrons
neutrons
protons
both protons and electrons
2
On the periodic table, horizontal rows are called...
families
rows
periods
groups
3
Lithium, sodium, and potassium are examples of...
alkali earth metals
metalloids
alkali metals
halogens
4
Uranium-235 has a mass number of_______ and an atomic number of _______
238/92
92/235
92/238
235/92
5
What two particles is the nucleus made of?
electrons and neutrons
protons and bosons
protons and electrons
protons and neutrons
6
Ions have an unequal number of...
neutrons and protons
protons and bosons
electrons and neutrons
protons and electrons
7
What scientist developed a model of the atom that placed electrons in orbit around the nucleus?
Bohr
Thomson
Millikan
Schrodinger
8
Who created the atomic model with the nucleus being surrounded by a cloud of electrons?
Bohr
Schrodinger
Rutherford
Thomson
9
An atom that has a net charge is referred to as an...
atom
ion
isotope
compound
10
On the periodic table, vertical columns are called
groups
both families and groups
families
periods
11
Ions are formed by...
the gain or loss of neutrons
the gain or loss of electrons
the gain or loss of atoms
the gain or loss of protons
12
Beryllium, magnesium, and calcium are examples of...
alkaline earth metals
alkali metals
metalloids
halogens
13
Helium, neon, and argon are examples of...
noble gases
alkali earth metals
halogens
alkali metals
14
Who determined the charge of an electron?
Thomson
Millikan
Bohr
Schrodinger
15
Iodine, chlorine, and bromine are examples of...
alkali metals
halogens
alkali earth metals
noble gases
16
Silicon, germanium, and arsenic are examples of...
alkali earth metals
alkali metals
metalloids
halogens
17
JJ Thomson's _______ experiments led to the _____ model of the atom
gold foil/bohr
cathode ray tube/plum pudding
mathematical/quantum mechanical
laboratory/ball and stick
18
Rutherford's _____ experiments led to the ____ model of the atom
gold foil/Bohr
mathematical/quantum mechanical
laboratory/ball and stick
cathode ray tube/plum pudding
19
Isotopes are atoms of the same element that differ in the number of...
protons
electrons
neutrons
bosons
