D = m / V
0.736 = 225.0 / V
V = 225.0 / 0.736
V = 305.7 cm³
Potassium is an alkali metal with the chemical symbol K. It has an atomic number of 19, meaning that it has 19 positively charged protons. It also contains 19 electrons, which have a negative charge, and 20 neutrons, which do not hold a charge
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1.3 x 10^21 atoms Na is 4.63230769231 mol Na
4.63230769231 mol Na * 23g/mol Na = 106.543076923g
Answer:
Your correct answer is D. 40 g
Explanation:
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