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Physics, 29.06.2021 08:00, ajbrock1004
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Directions: Choose the word from the box below that correctly completes each sentence. Use each word only once. Review the information if necessary
neutrons
subatomic particles
nucleus
atomic number
protons
atomic mass
electrons
electron cloud
1. Protons, neutrons, and electrons in an atom are called subatomic particles
2. Neutrons and
have nearly the same mass
3
have nearly no mass
4. The
of an element is the sum of the neutrons and protons,
5. To calculate the number of rfeutrons in an atom, subtract the
✓ from the atomic mass.
6. The atomic number of an element is the number of protons in the
7. The nucleus of an atom is composed of protons and
8. The electrons of an atom are found in the
✓
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Answers: 3
Physics, 21.06.2019 18:30, Tierriny576
A6,600 kg train car moving at +2.0 m/s bumps into and locks together with one of mass 5,400kg moving at -3.0m/s. what is their final velocity? +0.50 m/s -1.0 m/s +2.5 m/s -0.25 m/s
Answers: 3
Physics, 22.06.2019 16:20, brittanysanders
What is the mass of the water that is being heated? it requires 2,500 joules to raise a certain amount of water (c = 4.186 jig c) from 20.0°c to 60.0°c. o 159 o 40 g o 63 g o 80 g
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