What element has 8 protons and 8 nuetrons

A chemical spill gets into the soil and effects the plants within a forested ecosystem. explain why the top predators would be most affected by this

The nucleus of an atom is dense and positively charged. What was observed when positively charged particles were radiated onto a gold atom during Rutherford's experiment because of this? Negative charges were concentrated at the center of the atom.

Lithium, sodium, and potassium are examples of

1. Which of the following pairs of atoms are isotopes? a) K-39 and K-40 c) C-12 and N-14 b) F-10 and Ne-10 d) H-2 and He-2

Kobe adds 60 grams of the salt NH4Cl to 100 mL of water at 70°C. He then adds 20 grams more to the water without changing the temperature. What will happen to the added 20 grams?

The ability of elements to participate in a chemical reaction is measured in form of its

If you have 85g of sulfur dioxide at STP, how many moles do you have?

Calculate OH - given H3 O + = 1.40 * 10^-4 M

Which combustion product is a deadly gas that you cannot see or smell

All atoms that can enter into chemical reactions do so to either share, gain or lose electrons to achieve a stable state. True False