Share Physical Science Chapter 5 Test Review
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A horizontal row on the periodic table is called a _______________
period
the mass number is _________________________________.
the total number of protons and neutrons in an atom.
noble gases are typically ________ because they have a full outer shell of _____________.
stable, valence electrons
Atoms in the same group have ___________ properties.
similar
_____________ differ in the number of neutrons found in an atom of the same element.
Isotopes
Transition metals (aka transition elements) are found in _______________ of the periodic table
groups 3-12
Germanium (Ge) is found in group ________ and in the ________ period.
14th group, 4th period.
a vertical column in the periodic table is called a ___________.
group
___________ is an example of a non-metal.
oxygen
helium
all of these
krypton
the atomic number of an element specifically tells you how many ________ are found in that element.
protons
Elements in group 13 have _____ valence electrons.
3
The atomic number of oxygen is __________.
15.999
8
16
9
________ is an example of an alkaline earth metal
potassium
titanium
scandium
calcium
The ________ of Arsenic is 74.9216
atomic weight/atomic mass
Most of the mass of an atom comes from __________________.
protons and neutrons
Alkali metals are found in ______ of the periodic table
group 1 (minus hydrogen)
