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Test Bank For Chemistry Core Concepts, 2024 3rd Edition by Allan Blackman, Christopher Thompson, Natalie Williamson, Gwendolyn Lawrie, Daniel Southam Chapter 1-16$18.48
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Test Bank For Chemistry Core Concepts, 2024 3rd Edition by Allan Blackman, Christopher Thompson, Natalie Williamson, Gwendolyn Lawrie, Daniel Southam Chapter 1-16
Test Bank For Chemistry Core Concepts, 2024 3rd Edition by Allan Blackman, Christopher Thompson, Natalie Williamson, Gwendolyn Lawrie, Daniel Southam Chapter 1-16
True/False questions
–
1. Removing an electron from a sodium atom (Na) gives the Na anion.
a. True
*b. False
Answer: b
Learning objective 1.2 – define atoms, molecules, ions, elements and compounds.
–
2. Adding an electron to a fluorine atom (F) gives the F anion.
*a. True
b. False
Answer: a
Learning objective 1.2 – define atoms, molecules, ions, elements and compounds.
3. In a chemical reaction, no detectable gain or loss of mass occurs.
*a. True
b. False
Answer: a
Learning objective 1.3 – describe the scientific evidence that the atom is the fundamental
building block of all matter.
4. In Dalton‘s atomic theory, atoms are destructible and can be broken down into separate parts.
a. True
*b. False
Answer: b
Learning objective 1.3 – describe the scientific evidence that the atom is the fundamental
building block of all matter.
,5. In a given chemical compound, the elements are always combined in the same proportions by
mass.
*a. True
b. False
Answer: a
Learning objective 1.3 – describe the scientific evidence that the atom is the fundamental
building block of all matter.
6. The charge of an electron was determined by Ernest Rutherford.
a. True
*b. False
Answer: b
Learning objective 1.3 - describe the structure of the atom.
7. Protons are positively charged subatomic particles.
*a. True
b. False
Answer: a
Learning objective 1.3 - describe the structure of the atom.
8. Neutrons are negatively charged subatomic particles.
a. True
*b. False
Answer: b
Learning objective 1.3 - describe the structure of the atom.
9. All atoms possess the same number of protons, but are distinguished by the difference in the
number of electrons.
a. True
*b. False
Answer: b
Learning objective 1.3 - describe the structure of the atom.
, 10. All carbon atoms possess the same number of protons, but are distinguished by the difference
in the number of neutrons.
*a. True
b. False
Answer: a
Learning objective 1.3 - describe the structure of the atom.
11. All carbon atoms possess the same atomic number, but are distinguished by the difference in
the number of protons.
a. True
*b. False
Answer: b
Learning objective 1.3 - describe the structure of the atom.
12. Mendeleev devised his periodic table by ordering the elements according to their atomic
number.
a. True
*b. False
Answer: b
Learning objective 1.5 – explain how the periodic table organises elements into blocks, groups
and periods.
13. Arsenic has a higher atomic mass than gold.
a. True
*b. False
Answer: b
Learning objective 1.5 – explain how the periodic table organises elements into blocks, groups
and periods.
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