Chlorine has the electron configuration 1s22s22p63s23p5. how many valence electrons does it have?

A 0.530 M Ca (OH) 2 solution was prepared by dissolving 36.0 grams of Ca (OH) 2 in enough water. What is the total volume of the solution thus formed? 0.720 liters 0.917 liters 1.03 liters 1.21 liters

How many bromine atoms are present in 39.4 g of CH2Br2

Where in the periodic table would you find elements with the same number of energy levels? A. group O only B. within any group C. within any period D. all the non-metals

How are continental glaciers different from valley glaciers?

How many iron atoms contained in a 0.83 mole sample of iron

How much of a 15.0M stock solution do you need to prepare 250ml of a 2.35ml hf solution?

A synonym for dwindled

A material that cannot be broken down farther by chemical means

How many of the following elements have 2 unpaired electrons in the ground state? C Te Hf Si A) 1. B) 2. C) 3. D) 4.

Which has a higher frequency, a neutron or electron? Why?