The element x in group 17 has 3 shells write the complete sub shell electronic configuration

2:8:7

Explanation:

The first shell can accommodate a maximum of 2 electrons, while the second level accommodates a maximum of 8 while the third last cell takes up the remaining 7 electrons

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

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water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.