With
Your
Host
In the
Center
Parts are
Parts
My Atomic
Number
It’s
Elementary
Symbol
Spelling
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nucleus
This is what the center of an atom is called.
proton
This particle in the nucleus has a positive
charge.
neutron
This particle in the nucleus does not have a
charge.
electrons
These orbit the nucleus of an atom.
protons
How many of these particles an atom has
determines which element an atom is.
Proton, neutron, electron
These are the three particles that
make up an atom.
Protons and neutrons
These two particles make up most
of the mass of an atom.
electrons
These have almost no mass.
electrons
Atoms will exchange or share these
particles with other atoms.
isotope
An atom that has a different number
of neutrons compared to others of
the same element is called this.
hydrogen
This element has the lowest atomic
number (1).
increase
Atomic numbers do this as you
move from the left side to the right
side of the periodic table.
proton
Helium has one more of these than
hydrogen.
Atomic numbers
The periodic table is arranged
according to these.
92
There are this many natural
elements.
actinium (Ac)
This element would come first if
listed alphabetically by symbol.
sodium (Na)
Of the two elements that make up
table salt, this one has the lower
atomic number.
barium (Ba)
This element’s symbol matches the
first two letters of the last
President’s first name.
mercury (Hg)
This metal element is a liquid at room
temperature.
nitrogen (N)
Almost 80% of the air we breath is
this gas.
boron & astatine (BAt)
This is what you hit a baseball with.
coboat & aluminum (CoAl)
This black rock is burned as fuel.
silicon & phosphorus (SiP)
This three letter word describes how
you might slowly drink from a cup.
silicon & sulfur (SiS)
This word is short for a female
sibling.
CoNE and CONe
There are two ways to spell this four
letter word that can be used to hold
ice cream.
22
18
This is how many
neutrons argon has.
Ar
Argon
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