Which of the following statements is true regarding both theories and laws? A: Change over time
B: Cannot be proven
C: Require consensus
D: Supported by observations

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.

What was bohr’s contribution to the planetary model

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro