<span>The outermost energy level of an element are called the valence shell, that holds the valence electrons. they consist of the highest energy level. In aluminum, the valence electrons are 3. </span>
The horizontal velocity was constant, so:
it traveled 90meters
True because energy can change its speed because of temperature and also its direction
Answer:
No
Explanation:
Because the people put in charge of defining SI units said so
To make a base line mark to know where she started measuring the snails movement, at the end of the day she can measure from her first line to her last to see how far the snail went.
Hope this helped!
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