# of planets in the solar system
Planet closest to the sun
Planet farthest from the Sun
Planet with prominent rings
Do all planets have moons?
Mercury has the ______ year
Rock and metal
What are asteroids made of
Protons, neutrons, electrons
3 basic components of an atom
An element number is determend by the number of these
nucleus consists of...
When an atom loses one or more electrons it will have this charge
Size and mass
Protons and neutrons have the same...
two particles that are attracted to each other
Where electrons are found in an atom
Number of known elements
how elements are arranged in the periodic table
Scientist who came up with the periodic table
rows in the periodic table
Columns in the periodic table
Group on the right side of the periodic table
When an atom gains one or more electrons it will have this charge
atom that gains or loses one or more electrons
In both ionic and covalent bonds, atoms are left with ____________ outer shells
metal and nonmetal
Ionic bond forms between these two
In covalent bonds, elements _______ one or more electrons
forms between two nonmetals
pure substance containing two or more elements that are chemically bonded
combination of chemical symbols and numbers that shows which elements are present in a compound
A ball of frozen dust and rock that orbits the sun and has a tail that glows
A meteoroid that burns up in Earth's atmosphere.
a meteoroid that does not completely burn up in the atmosphere and strikes the surface of a moon or planet
any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)
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