question 7\n1 pts\nall atoms of a given element have the same \nnumber of neutrons\nnumber of…

question 7\n1 pts\nall atoms of a given element have the same \nnumber of neutrons\nnumber of protons\nmass\nnumber of electrons and neutrons\ndensity\n\nquestion 8\n1 pts\nan atom of the most common isotope of gold, ¹⁹⁷au, has \nneutrons, and electrons. protons,\n79, 197, 197\n197, 79, 118\n118, 79, 39\n79, 118, 118\n79, 118, 79

question 7\n1 pts\nall atoms of a given element have the same \nnumber of neutrons\nnumber of protons\nmass\nnumber of electrons and neutrons\ndensity\n\nquestion 8\n1 pts\nan atom of the most common isotope of gold, ¹⁹⁷au, has \nneutrons, and electrons. protons,\n79, 197, 197\n197, 79, 118\n118, 79, 39\n79, 118, 118\n79, 118, 79

Answer

Brief Explanations:

For Question 7: The atomic number, which is the number of protons, defines an element. So all atoms of a given element have the same number of protons. For Question 8: Gold (Au) has an atomic number of 79, so the number of protons is 79. For the isotope (^{197}\text{Au}), the mass - number is 197. The number of neutrons = mass - number - number of protons = 197 - 79=118. In a neutral atom, the number of electrons is equal to the number of protons, so there are 79 electrons.

Answer:

Question 7: number of protons Question 8: 118, 79, 79