Metal known for use in thermometers
is a liquid at room temperature
MERCURY
Although it started with 63,
there are now this many elements
in the current Periodic Table?
118
The center of an atom
NUCLEUS
All organic compounds must
contain what 2 elements.
(must answer both correctly)
CARBON & HYDROGEN
The three states of matter of an element
often determined by chemical property
at designated temperature
SOLID
LIQUID
GAS
The 2 most abundant elements.
(must answer both correctly)
HYDROGEN & HELIUM
What are the rows AND columns
of The Periodic Table Called?
(need to answer both correctly)
PERIODS (rows) & GROUPS (columns)
2 subatomic particles
found in atomic nucleus
(must answer both correctly)
PROTONS & NEUTRONS
H2O: Name Compound
Name AND Number of Elements
(must answer all three correctly)
WATER
2 HYDROGEN / 1 OXYGEN
Includes symbols and numbers to
identify type and number of elements
CHEMICAL
FORMULA
Located on the left side of The Periodic Table, this category of elements are good conductors of electricity
METALS
How many rows and columns are
there on The Periodic Table?
(must answer both correctly)
7 ROWS / 18 COLUMNS
Negatively charged
subatomic particles in an atom
ELECTRONS
NaCl: Name Compound
Name AND Number of Elements
(must answer all three correctly)
Table Salt
1 SODIUM HYDROGEN / 1 CHLORINE
Two or more metals formed into
a new mixture (example: pewter)
ALLOY
Located on the right side of The Periodic Table, this category of elements are poor conductors of heat
NON-METALS
All of the elements in Group 18 are referred to as what?
NOBLE GASES
This indicates how many protons are in the nucleus
ATOMIC
NUMBER
Electrons transferred from
metal atoms to non-metal
IONIC BONDING
VALENCE
ELECTRONS
Solid at room-temperature these 7 elements such as Boron and Silicon are just o.k. conductors of heat and electricity
METALLOIDS
In 1869, this Russian chemist
published the list of all known
chemicals at the time
DIMITRI MENDELEEV
Rings around the nucleus of an atom
where charged particles move
ENERGY
LEVELS
Electrons shared between non-metals or metalloids
COVALENT
BONDING
Term for the small number that
tells the number of atoms of
an element in a compound
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