6. For the following questions, use a periodic table and your atomic calculations to find the unknown information about each isotope:

You have an isotope with 23 protons and 29 neutrons. What is the mass number?

23

29

52

6

What is the importance of the ozone layer?

The discoveries of astronomers like copernicus and galileo

The energy of a sound wave is most closely related to the wave's (1) frequency (3) wavelength (2) amplitude (4) speed

What are advantages and disadvantages of apparent solar time? How is the situation improved by introducing mean solar time and standard time?

Nuclear energy is nonrenewable because ... A. uranium is a rare metal. B. once we use the Earth's supply of uranium, there will not be any more. C. mining uranium is very expensive. D. there are a limited number of neutrons in the world

What is the expected wavelength (in cm) of 10.5 ghz microwaves in free space?

There are 5,280 feet in 1 mile and 12 inches in one foot. How many inches are in a mile?

An anion is an atom that has lost electrons. True or False?

Question: Jane, looking for Tarzan, is running at top speed (4.5 m/s) and grabs a vine hanging vertically from a tall tree in the jungle.

Kim holds a pinwheel in the air and says it can be used to model a source of energy. Identify the type of energy Kim's pinwheel models. Explain the type of energy source used.