could use some help with these 10pts best answer!
Two examples of radioactive minerals are
calcite and dolomite.
feldspar and quartz.
bornite and azurite.
carnotite and uraninite.
Metals form positive ions because they easily
gain electrons.
become neutral.
lose electrons.
decay.
The composition of Earth's inner core is
solid iron and nickel.
solid iron only.
solid nickel only.
none of the above.
A Foucault pendulum provides evidence of Earth's
rotation.
axial tilt.
parallax.
revolution.
A Foucault pendulum provides evidence of Earth's
rotation.
axial tilt.
parallax.
revolution.
2007-03-19 03:44:03 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
1) Uraninite has uranium, so wouldn't you expect it to be radioactive? Carnotite and Uraninite.
2) Atoms consist of protons, neutrons, and electrons. Electrons have a negative charge. So, what would make an atom become a positive ion? Losing electrons.
3) This is in your textbook, as well as all over the interwebs.
4) Same.
You can figure these out, I promise.
2007-03-19 03:48:16 · answer #1 · answered by Brian L 7 · 1⤊ 0⤋
Two examples of radioactive minerals are
carnotite and uraninite
Metals form positive ions because they easily
lose electrons
The composition of Earth's inner core is
solid iron and nickel.
2007-03-19 03:51:09 · answer #2 · answered by Anonymous · 1⤊ 0⤋
carnotite and uraninite. because of uranium
lose electrons.
none of the above. inner core is very hot.. therefore metals must be melting... and will reach its liquid phase
rotation... most reasonable answer.
rotation. "
2007-03-19 03:51:25 · answer #3 · answered by :) 1 · 3⤊ 0⤋
1) bornite and azurite
2) lose electrons
3) solid iron only
4) axial tilt
2007-03-19 03:50:06 · answer #4 · answered by DARK CHOCOLATE 2 · 1⤊ 0⤋
Crnotite & uranium
losing electrons
solid iron
earth rotation to the last two..
2007-03-19 03:47:49 · answer #5 · answered by Anonymous · 1⤊ 0⤋
I'm REALLY sorry I can't help... I'm working on the same stuff right now... Sorry!
Hayley
2007-03-19 03:47:24 · answer #6 · answered by ♫ PuNkROCKprincess ♫ 2 · 0⤊ 0⤋