Answer:
An atom that gains one or more electrons will exhibit a negative charge and is called an anion. Positively charged atoms called cations are formed when an atom loses one or more electrons.
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Answer:
A) They all have similar chemical properties.
Explanation: Elements of any family in the periodic table have the same number of valence electrons. Because of this they all have similar chemical properties.
Answer:
C, hot weather is external
Explanation:
Answer: metric ruler
Explanation:learned that the hard way