Answer:
The answer is option b.
Explanation:
Amplitude is the distance apart each wave is.
Answer:
Substances 1 and 2
Explanation:
an element only has 1 kind of atoms :3
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According to "Newton's First Law" an object at rest will begin to move when it is acted upon an unbalanced force.
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Answer:
The answer is c
Explanation:
Because all of the Other ones did not make sense
Group 12 Elements have two valence electrons while Group 13 Elements have three valence electrons.
Number of valence electrons tend to determine factors like reactivity. So elements with different number of valence electrons will have different properties.
That is why G12 and G13 have different properties