Globular clusters are used as spiral tracers
a. True
b. False
Indicate whether the statement is true or false
False
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Radioactivity Basics: When a ?+ particle is emitted from an unstable nucleus, the atomic number of the nucleus
A. increases by 1. B. decreases by 1. C. increases by 2. D. decreases by 2. E. does not change.
Which component of Earth's geology has helped to shield the Earth's atmosphere from energetic particles of solar wind from the Sun which would have gradually stripped it away into space?
A) volcanism B) seismic activity C) plate tectonics D) global magnetism
All atoms of an element have the same number of:
a. ions b. protons only c. neutrons only d. electrons. e. protons and neutrons
The coulomb, which is the unit of charge, is the charge on one electron
Indicate whether the statement is true or false