addy
the sun puts out what?
electromagnetic radiation which includes visible lighy
when H is un-energized its _ sits in thr lowest shell
1 electron
Full shells are stable like
Noble gasses
Alkali metals have 1 electron in the
Outer shell
Alkali metal have
1 more electron than the newest noble gas
their reactivity is due to the instability of a shell containing
only one electron
these react to
give away
an ion is an
atom that has gained or lost electrons in its valence shell.
ions have either a
Positve or negative charge
Mg reacts with?
oxygen
Ions never exist on their own
they are always combined with ions of opposite charge
number 1 of the periodic table
Hydrogen
what is the jet stream
the jet stream is a thin ribbon of fast moving air
Number 2 on the periodic table
Helium
Number 3 on the periodic table
Lithium
number 4 on the periodic table
berylium
name MgO
magnesium oxide
what is the name of CO
Carbon oxide
what is the name of CF4
CarbonTetraFlouride
water absorbs_ of the radiation hitting it (unless its snow or ice)
93%
30% of earth is
land
70% of earth is
water
where us the atomic mass located
under the number on the bottom
what is ecology?
the study of the relationships between living organisms, including humans, and their physical environment
what is the carbon cycle?
nature's way of reusing carbon atoms
what is the order in the carbon cycle?
carbon dioxide, sunlight, photosynthesis, decaying organsims, dead organisms and waste products, auto and factory emissions
what is the the middle of the carbon cycle?
animal respiration, organic carbon, root respiration, plant respiration.