What two elements fill their last electron in the 5s sublevel?

Which answer lists the fundamental forces in order from strongest to weakest

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

A40 kilogram skier starts at the top of a 12 meter high slope. at the bottom, she is travelling 10 meters per second. how much energy does she lose to friction