What element is represented by this electron configuration: 1s 2s2 2p4? a. carbon
b. calcium
c. chromium
d. sulfur
e. oxygen

In the analysis of hair and fiber samples, which does a compound comparison microscope allow for that a conventional compound microscope does not? a. simultaneous observation b. polarization c. fluorescence d. higher magnification

The first element on the periodic table of elements is carbon. a. true b. false

Select the correct answer. which phrase correctly describes temperature? o a. average rotational kinetic energy of the particles in an object o b. average energy of the particles in an object c. average translational kinetic energy of the particles in an object od. all energy possessed by the particles in an object