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☆☆☆☆☆Neutrons have a neutral charge
Neutrons have no charge.
The weight of the rocks in the crust and upper mantle results in the pressure that allows diamonds to form.
Noble gases are all monatomic (single-atom molecules) and have the following characteristics under normal conditions :
- Odorless
- Colorless
- Low reactivity (due to a full outer electron shell)
Seismic waves contain both P waves and S waves. P waves can travel through the Earth including the inner core while S waves could not pass through the core.
Hydrogen and chlorine are chemical elements, not compounds
it needs six more electrons to have a full outer valence shell.
Hydrogen is the first element in the periodic table.
Water is the only item found on earth in three different phases of matter at standard pressure.
Ag and Al
Which of the following statements about racial groups in the U.S. is true?
Convection cells
magnetic stuff...
