An atom of tungsten (W) has 74 protons. The atomic mass of tungsten is 183.84. How many neutrons does an atom of tungsten have? Round your answer to the nearest whole number.
Intro
Done

110

Explanation:

to find neutrons we have to subtract the atomic number from the atomic mass.

atomic mass = 183.84

atomic no = 74

183.84 - 74 = 109.84

round off = 110

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.

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