Will Be On The Quiz Atoms & Isotopes
12 Questions
| Total Attempts: 61
Isotopes are atoms of the same element that contain different numbers of neutrons and thus have different mass numbers. The test below was prepared to help you get an idea of thaw to expect in the quiz that is coming up on atoms. Give it a shot and all the best!
Questions and Answers
- 1.Explain each of the following laws1. Law of Conservation of Mass2.Law of Multiple Proportions3. Law of Definite proprtions
- 2.Came up with the idea that all matter is made up of tiny particles called atoms
- A.
Chadwick
- B.
Aristotle
- C.
Democritus
- D.
Odysseus
- 3.Aristotle believed that all matter is made up of which 4 elements
- A.
Earth, glass, rock, fire
- B.
Wind, water, fire, earth
- C.
Electricity, fire, earth, rock
- D.
Water, wind, sun, trees
- 4.JJ Thompson discovered __________.
- A.
Electron
- B.
Proton
- C.
Neutron
- D.
Isotope
- 5.Rutherford discovered the nucleus using which experiment
- A.
Cathode ray
- B.
Bohr model
- C.
Gold foil
- D.
Plum pudding
- 6.Rutherford and Chadwick discovered both _______________ & ___________
- 7.Atoms of the same element have different numbers of neutrons, which changes the mass of an atom
- A.
Quark
- B.
Idotope
- C.
Neutrons
- D.
Isotope
- 8.The atomic number of an element tells us the number of protons and neutrons in a specific isotope
- A.
True
- B.
False
- 9.The atomic number is the number of protons in the nucleus and also identifies the element
- A.
False
- B.
True
- 10.Atoms cannot be subdivided, created, or destroyed
- A.
True
- B.
False
- 11.If you have two different isotopes of the same element will have the same atomic number?
- A.
Yes
- B.
No
- 12.What does the acronym "amu" stand for?
- A.
Average mass unit
- B.
Atomic mole unit
- C.
Atomic mass unit
Protons and neutrons are the heaviest particles in an atom and as a result they make up most of the mass of the atom. If you Change the number of neutrons in an atom it becomes an isotope, change the number of electron and it...
Questions: 13 | Attempts: 1798 | Last updated: Mar 21, 2022
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Sample QuestionHow do I form Li+?
An atom never gains or loses a proton just the number of electrons is affected during chemical reaction and when it does the atom becomes an ion and has both negative and positive charge. Test out what you know about these...
Questions: 10 | Attempts: 1522 | Last updated: Mar 22, 2022
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Sample QuestionAtoms and Ions are all the same?
To help you start studying for the test on Thursday.Give your best effort, you get points for trying today.
Questions: 23 | Attempts: 780 | Last updated: Mar 20, 2022
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Sample QuestionWhat is the difference between atoms and ions when it comes to the number of neutrons?
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