BYU CHEM 101 Exam 2 - Prof. Watt with all Correct & 100% Verified Answers
|Latest Version |Already Graded A+
1. Dalton's Atomic Theory (1) Elements consist of indivisible atoms. (2) All atoms of the
same
element are identical; ditterent elements have ditterent types
of atom. (3) Atoms can neither be created nor destroyed.
2. Rutherford's Theory Discovery of the proton.
3. Millikin's oil drop When a man was able to calculate the mass of an electron and
experi-ment
the amount of charge it had using an oil droplet.
4. atomic number the number of protons in the nucleus of an atom
5. mass number number of protons plus the number of neutrons in an
(atomic mass)
atom of an element
6. Orbitals in s,p,d,f 1,3,5,7
7. Electrons Negatively charged particles
8. Protons Positively charged particles
9. Neutrons no charge
10. Period (periodic table) Horizontal rows on the periodic table
11. Group (periodic table) a vertical column of elements having the same valence electron
configuration and showing similar properties
12. Calculating the number mass number - atomic number
of neutrons
13. Calculating the number
of protons
same as atomic number
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, BYU CHEM 101 Exam 2 - Prof. Watt with all Correct & 100% Verified Answers
|Latest Version |Already Graded A+
14. Electron Configuration [Ne] 3s² 3p⁵ or 1s^22s^22p^63s^23p^5
of Cl (shorthand and
long)
15. alkaline metals Group 1 - Very reactive because they only have 1 valence
electron.
16. alkaline earth metals Group 2 - metallic elements in group 2 of the periodic table
which
are harder than the alkali metals and are also less reactive
17. halogens Group 7 - Contains nonmetals, 7 valence electrons in it's
outermost energy level. Very reactive
18. noble gases Group 8 - the elements in Group 8A of the periodic table
19. Lewis Dot Structure of CO2 2 electron domains, 2 bonded, linear, predicted angle
20. Lewis Dot Structure of NH3 4 electron domains, 3 bonded, Trigonal pyramidal
21. Periodic trends Atomic size gradually decreases from left to right and
(atomic size)
increases top to bottom. Largest size is bottom left corner.
22. Periodic trends
(metallic character) Atomic size gradually decreases from left to right and
increases top to bottom. Biggest is bottom left corner.
23. Periodic trends
(ionization energy)
Atomic size gradually increases from left to right and
decreases top to bottom. Largest is top right.
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10
|Latest Version |Already Graded A+
1. Dalton's Atomic Theory (1) Elements consist of indivisible atoms. (2) All atoms of the
same
element are identical; ditterent elements have ditterent types
of atom. (3) Atoms can neither be created nor destroyed.
2. Rutherford's Theory Discovery of the proton.
3. Millikin's oil drop When a man was able to calculate the mass of an electron and
experi-ment
the amount of charge it had using an oil droplet.
4. atomic number the number of protons in the nucleus of an atom
5. mass number number of protons plus the number of neutrons in an
(atomic mass)
atom of an element
6. Orbitals in s,p,d,f 1,3,5,7
7. Electrons Negatively charged particles
8. Protons Positively charged particles
9. Neutrons no charge
10. Period (periodic table) Horizontal rows on the periodic table
11. Group (periodic table) a vertical column of elements having the same valence electron
configuration and showing similar properties
12. Calculating the number mass number - atomic number
of neutrons
13. Calculating the number
of protons
same as atomic number
1/
10
, BYU CHEM 101 Exam 2 - Prof. Watt with all Correct & 100% Verified Answers
|Latest Version |Already Graded A+
14. Electron Configuration [Ne] 3s² 3p⁵ or 1s^22s^22p^63s^23p^5
of Cl (shorthand and
long)
15. alkaline metals Group 1 - Very reactive because they only have 1 valence
electron.
16. alkaline earth metals Group 2 - metallic elements in group 2 of the periodic table
which
are harder than the alkali metals and are also less reactive
17. halogens Group 7 - Contains nonmetals, 7 valence electrons in it's
outermost energy level. Very reactive
18. noble gases Group 8 - the elements in Group 8A of the periodic table
19. Lewis Dot Structure of CO2 2 electron domains, 2 bonded, linear, predicted angle
20. Lewis Dot Structure of NH3 4 electron domains, 3 bonded, Trigonal pyramidal
21. Periodic trends Atomic size gradually decreases from left to right and
(atomic size)
increases top to bottom. Largest size is bottom left corner.
22. Periodic trends
(metallic character) Atomic size gradually decreases from left to right and
increases top to bottom. Biggest is bottom left corner.
23. Periodic trends
(ionization energy)
Atomic size gradually increases from left to right and
decreases top to bottom. Largest is top right.
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10
