Write the charge on each of the following elements when they form and ion.

1) __ O 2) __Ba 3) __ I 4) __N

Which group on the periodic table contains elements in all 3 states of matter?

Determine the mass of 6.44 * 1023 atoms Cl.

Which element has the greatest average atomic mass? A. iodine B. bromine C. tellurium D. krypton

The heliocentric theory: was immediately accepted was proposed by Galileo states that the earth revolves around the sun proposed that the earth was the center of the solar system

What is the mass, in grams, of 1.58 mol of water, h2o?

No club de desbravadores o tesoreiro deve entrar em forma?

Why is a hydrogen bond a relatively weak bond?

Which two subatomic particles are located within the nucleus of an atom? ... A. protons and neutrons ... B. protons and electrons ... C. electrons and neutrons.

Explain in detail how photosynthesis follows the law of conservation of mass AND the law of conservation of energy.

The anion formed from an oxygen atom is called a (n) a. oxygen ion. c. carbon dioxide. b. oxide ion. d. nitrous oxide.