What type of structure does `(NPS_2)_4` have

An element with cell edge of 288 pm has a density of 7.2 g cm-3. What type of structure does the element have if it’s atomic mass M=51.8 g mol-1?

What type of structural isomerism is shown by

What type of discontinuity does f(x) =(1)/(log_(e) |x^(2)-4|) have?

How many types of isotopes does Scandium have?

What are positive and negative charges ? Which type of charge does electron have ?