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When an atom loses an electron, it becomes a ___.
They are mostly empty space
electrons
6
8
2
the element’s atomic number
positive ion
They are different elements
What is the atomic number of carbon?
They are mostly empty space
electrons
6
8
2
the element’s atomic number
positive ion
They are different elements
Which parts of the atom move around the nucleus?
They are mostly empty space
electrons
6
8
2
the element’s atomic number
positive ion
They are different elements
What information in the periodic table indicates the number of protons in an atom?
They are mostly empty space
electrons
6
8
2
the element’s atomic number
positive ion
They are different elements
How many electrons does a neutral atom of helium have?
They are mostly empty space
electrons
6
8
2
the element’s atomic number
positive ion
They are different elements
Which of the following is true of atoms?
They are mostly empty space
electrons
6
8
2
the element’s atomic number
positive ion
They are different elements
Two atoms have different numbers of protons. Which of the following must be true?
They are mostly empty space
electrons
6
8
2
the element’s atomic number
positive ion
They are different elements
How many protons does a neutral atom of oxygen have?
They are mostly empty space
electrons
6
8
2
the element’s atomic number
positive ion
They are different elements
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