Chapter 3: Problem 58
If one considers just the representative elements, how many groups would the periodic table have?
Chapter 3: Problem 58
If one considers just the representative elements, how many groups would the periodic table have?
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Get started for freeMagnesium has a higher first ionization energy than sodium, consistent with the periodic trend for first ionization energies. Postulate a reason why Mg has the higher first ionization energy.
Suppose \(12.0 \mathrm{~g}\) of silicon (Si) reacts with \(70.0 \mathrm{~g}\) of oxygen \(\left(\mathrm{O}_{2}\right)\) to give \(25.6 \mathrm{~g}\) of the compound silicon dioxide \(\left(\mathrm{SiO}_{2}\right) .\) In the process, all the silicon gets used up, but some oxygen is left over. (a) For the law of conservation of matter to be obeyed, how much oxygen is unused? (b) What is the percent \(\mathrm{Si}\) in \(\mathrm{SiO}_{2} ?\) (c) What is the percent \(\mathrm{O}\) in \(\mathrm{SiO}_{2}\) ?
What is so special about the mass number and atomic mass of \({ }_{6}^{12} \mathrm{C}\) ?
Complete the following statements: (a) The nucleus contains the charged particles in the atom. (b) The particles in the nucleus are the and (c) Almost all of the mass of an atom is contained in the (d) The two particles whose charges cancel to make an atom neutral are and
If one considers just the representative elements, how many groups would the periodic table have?
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