Make a simple sketch of an atom and label its three main particles. Explain how these particles differ from one another
What will be an ideal response?
Lithium, for example.
Atoms are made of protons, neutrons, and electrons. Both protons and neutrons have atomic mass and reside in the nucleus of atoms. Protons are positively charged, and neutrons have no charge. Electrons reside outside the nucleus, orbiting in "shells." Electrons have negligible mass and a negative charge.
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A population will decrease as
A. birth rate increases. B. mortality decreases. C. biotic potential increases. D. environmental resistance increases. E. immigration increases
What employment sector is identified with information processing?
A) primary B) secondary C) tertiary D) quaternary E) quintenary
Phoenix, Arizona does not need to learn from the Hohokam because technology has improved greatly
since the 16th century. Indicate whether the statement is true or false.
Tall smokestacks were effective ways of
A. Eliminating the effects of pollution B. Cleaning up air pollution C. Decreasing pollution D. Displacing and dispersing pollution E. Concentrating pollutants for easier cleanup