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Physical Science Final (Pena) Questions and Correct Answers | Latest UpdatePhysical Science Final (Pena) Questions and Correct Answers | Latest Update$11.49
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Physical Science Final (Pena) Questions and Correct Answers | Latest UpdatePhysical Science Final (Pena) Questions and Correct Answers | Latest Update
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Course
Physical Science
Institution
Physical Science
Which of the following statements is not true?
-:- d. Neutrons have a negative charge
What is an atom's nucleus made of?
-:- a. protons and neutrons
The charge of an atom is
-:- b. neutral
An iron atom has an atomic mass of 56. Its atomic number is 26. How many neutrons does
the iron ato...
✓ -:- c. It is a weighted average, so common isotopes have a greater effect
than uncommon ones.
An atom's mass number equals the number of
✓ -:- b. protons plus the number of neutrons
How many electrons does an element have with a mass number of 36?
✓ -:- d. unknown
The nucleus of an atom consists of 7 protons and 5 neutrons. The total number of electrons
present in a neutral atom of this element is
✓ -:- b. 7
Atoms of 160, 170, and 180 have the same number of
✓ -:- c. protons, but a different number of neutrons
All atoms of an element have the same
✓ -:- c. atomic number
3|P a g e | G r a d e A + | 2 0 2 0 2 5
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