Amolecule has two atoms that are bonded to the central atom and one lone pair of electrons around this central atom. what is the shape of the molecule?
bent
linear
trigonal planar
trigonal pyramidal

How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123

What three things does a balanced equation show you?

Which statement is true about the model of the electromagnetic spectrum a: it change the frequencies of light. b: it compare wavelengths of light. c: the color of light waves can be changed using the model. d: the intensities of light waves can be decreased using the model.