The atomic number of magnesium is 12. Its nucleus must contain A) 6 protons and 6 neutrons. B) 6 neutrons and 6 electrons. C) 12 neutrons and no protons. D) 12 protons and no electrons.

Which theory supports the fact that a person who goes skydiving for the first time is likely to feel fear before the activity, followed be relief after completing the activity

The electric force between two charged particles is 0.18 newtons. If the distance between them is increased by a factor of 3.0, what will the new electric force be? A. 0.36 newtons B. 0.02 newtons C. 0.06 newtons D. 1.62 newtons

a car is running with the velocity of 72 km/h. what will be it's velocity after 5 seconds if it's acceleration - 2 m/s²?

What is a fact about pedigree

How do you use the coefficient to calculate the number of atoms in each molecule?

Does 59feet = 170000 meters

The chemical reaction that causes chromium to corrode in air is given by 4Cr+3O2→2Cr2O3 in which at 298 K ΔH∘rxn = - 2256 kJ ΔS∘rxn = - 549.

Witch of the statements about water is true?

In what direction does an applied force move an object? In the same direction as the force Independent of the force In the opposite direction of the force Perpendicular to the force

You (60 kg) and your friend (80 kg) are both floating on separate tubes next to each other on the San Marcos River. Now you push your friend with 10 Newton. Select all correct statements. A.