Which of the following groups of elements is ranked from least reactive to most reactive?
A. Sr, Ca, Mg, Be
B. K, Na, Li, H
C. Li, Na, K, Rb
D. K, Ca, Sc, Ti

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

Matter that emits no light at any wavelength is called