Elements in the same family tend to have the same number of valence electrons.

a. True

b. False

Rank these elements according to first ionization energy. Na, Li, Rb, K

Round 51.32975248 to the requested number of significant figure a. 2 significant figures 5 c. 6 significant figures b. S significant figures d. 7 significant figures

Organic chemistry is the study of compounds containing A. carbon. B. hydrogen. C. oxygen. D. nitrogen.

The process of combining two small nuclei into one nucleus of larger mass is called

How many chlorine ions are required to bond with one aluminum ion and why?

In 1901, Thomas Edison invented the nickel-iron battery. The following reaction takes place in the battery. Fe (s) + 2 NiO (OH) (s) + 2 H2O (l) Fe (OH) 2 (s) + 2 Ni (OH) 2 (aq) How many mole of Fe (OH) 2, is produced when 5.35 mol Fe and 7.

As you move from left to right across the periodic table, the atomic numbers increase decrease stay the same are random

Use the octet rule to predict the formula of the compound that would form between fluorine and iodine, if the molecule contains only one fluorine atom and only single bonds are formed.

64.0 grams of Sulfur Dioxide absorbed 5.00 kJ of heat and immediately evaporated. With this information, calculate its molar enthalpy of vaporization in units kJ/mol.

Which of these is not a biomass source? A) Sun B) Manure C) Wood chips D) Paper