Atoms, Molecules, and Ions
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Atoms, Molecules, and Ions: Charge Me Up Quiz
Think you’ve got your head wrapped around Atoms, Molecules, and Ions? Put your knowledge to the test. Good luck — the Stickman is counting on you!
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Q. The smallest unit of matter than can enter into chemical reactions and is not divisible by chemical means is call a(n) ______.
Q. What does the nucleus of an atom contain?
Protons and electrons
Protons and neutrons
Q. The atomic weight of an atom is equal to the number of ______ plus the number of _______.
Q. Which of the following statements is true?
Electrons have a negative charge and equal the number of neutrons.
Electrons have a negative charge and equal the number of protons.
Protons have a positive charge and equal the number of neutrons.
Protons have a positive charge and are responsible for the formation of chemical bonds.
None of the above
Q. In an electrically neutral atom, the number of ______ is equal to the number of _______.
Q. The carbon atom has an atomic number of 6 and an atomic weight of 12. Therefore, a carbon atom has ______ protons.
Q. ________ are atoms that have the same number of protons but differ in the number of neutrons.
Q. The molecule KCl is held together by a(n)______ bond.
Q. If an atom either gains or loses an electron, the atom is called a(n) _________.
Q. Atoms such as sodium, potassium, calcium, or hydrogen, all lose electrons and become ________.
none of the above