An atom that has 5 valence electrons will form an ion with a charge of? (Remember to put your sign (+ or -) and number)

How many miles of water are produced if 5.43 mol pbo2 are consumed

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.

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains