Which of the following statements is true?
a. elements in the same group have the same number...
Physics, 04.09.2019 19:10 Epicgible8136
Which of the following statements is true?
a. elements in the same group have the same number of electron shells.
b. elements in the same period have the same number of valence electrons.
c. elements in the same period have similar characteristics, like reactivity and valence electrons.
d. elements in the same group, or family, have similar characteristics, like reactivity and valence electrons.
Answers: 1
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Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)
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