5 moles because molarity signifies number of moles dissolved in One litre of water
Neutrons and protons are in the nucleus
electrons are on shells which orbit the nucleus
Answer: A decomposition reaction occurs when one reactant breaks down into two or more products.
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Answer:
Explanation:
There are seven periods in the periodic table, with each one beginning at the far left. A new period begins when a new principal energy level begins filling with electrons. Period 1 has only two elements (hydrogen and helium), while periods 2 and 3 have 8 elements. Periods 4 and 5 have 18 elements.