If element x has 20 protons, how many electrons does it have

9. Which states of matter can flow?

Which element is an alkali metal?

Which particle is most likely present in the nucleus of the atom

What is the maximum number of unpaired electrons in a d subshell?

How many mols is 1433.6 iron atoms

Hat information is needed to determine the energy of an electron in a many-electron atom?

Write the formulas for the following compounds: (a) copper (l) cyanide, (b) strontium chlorite, (c) perbromic acid, (d) hydroiodic acid, (e) disodium ammonium phosphate, (f) potassium dihydrogen phosphate, (g) iodine heptafluoride, (h)

Name a complex salt used in silver-playing.

10. In what part of the world might you find Mystery Island (note: you will be given full-credit for simply attempting this question and you will find the actual answer in your teacher's feedback). Do not answer!

What are the spectator ions in this equation?