Which statement is true about the part of the electromagnetic spectrum that is divided into seven ranges of wavelengths? a. it is the only part visible to the human eye. b. it is one of the three parts visible to the human eye. c. it cannot be seen by the human eye unless it rains. d. it is one of the two parts visible to the human eye.

In all living cells dna controls cellular activities by

How many atoms are there in 5.70 mol of mg

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.