Classify each by whether they are, or tend to form, cations or anions. Answer Bank
Cations
Anions
have more protons than electrons
group 1A
(group 1)
negatively charged
group 7A
(group 17)
metals
nonmetals
C1-
Na+

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.

What is the percent by mass of magnesium sulfate in mgso4.7h2o