Answer:
Follows are the solution to this question:
Explanation:
Please find the complete solution in the attached file.
Answer: Either A or D
Geologists and paleontologists constructed the geologic table based on the relative positions of different strata and fossils, and estimated the time scales based on studying rates of various kinds of weathering, erosion, sedimentation, and lithification.
Answer:
2 electrons
Explanation:
The K shell is the innermost orbit and it contains 2 electrons
The average atomic mass of Sn is 118.71 g/mol
the percentage of heaviest Sn is 5.80%
the given mass of Sn is 82g
The total moles of Sn will be = mass / atomic mass = 82/118.71=0.691
Total atoms of Sn in 82g =
the percentage of heaviest Sn is 5.80%
So the total atoms of = 5.80% X
Total atoms of = atoms
the mass of will be =
Alpha particle is equivalent to B. Helium atom (2 protons, 2 neutrons)