General Organic Biological Chemistry 66 Questions With Correct Answers
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Course
NU1426
Institution
NU1426
General, Organic, & Biological Chemistry |66 Questions| With Correct Answers.
Who is credited to the discover of atoms?
Can atoms be divided?
Where are protons found?
Where are electrons found?
Where are neutrons found?
What is the ratio from a proton to an electron?
What charge do protons h...
General, Organic, & Biological Chemistry |66
Questions| With Correct Answers.
1). Who is credited to the discover of atoms?
Ans: John Dalton and Democritus (Greek Philosopher)
2). Can atoms be divided?
Ans: no
3). Where are protons found?
Ans: in the nucleus
4). Where are electrons found?
Ans: Outside the nucleus
5). Where are neutrons found?
Ans: in the nucleus
6). What is the ratio from a proton to an electron?
Ans: 1/2000
7). What charge do protons have?
Ans: +
8). What charge to electrons have?
Ans: -
9). What charge to neutrons have?
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, Ans: none
10). What is the atomic number?
Ans: The number of protons in the atom's nucleus
11). What is the mass number?
Ans: The total number of protons and neutrons in the nucleus of an atom
12). What are isotopes?
Ans: Atoms of a particular element that have a different number of neutrons.
Same atomic number, different mass number
13). Atomic weight
Ans: refers to the average mass of the atoms in a naturally occurring sample of the
element
14). What dietary deficiency can causes rickets?
Ans: A calcium deficiency
15). Cation
Ans: Positive ion (usually metals)
16). Anion
Ans: Negative ion (usually nonmetals)
17). Define element
Ans: A substancce that contains only one type of atom
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