Which of the following species would require the highest energy for the removal CHEMISTRY GRADE 11 of one electron? a Mg c Ne d F- ing has the lowest electronegativity? b Nat

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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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13. Which of the following species would require the highest energy for the removal
CHEMISTRY GRADE 11
of one electron?
c Ne
Mg2+
a
dF-
14. Which of the following has the lowest electronegativity?
c Beryllium
b Na+
19.
Carbon
d Boron
b Magnesium
15. Which of the following has the smallest radius?
c Mg
Na
Na+
d Mg2+
20
Part II: Answer the following questions:
2.
16. Identify the following subatomic particles:
The number of these in the nucleus is equal to the atomic number.
a
b The particle that is gained or lost when ions are formed.
C
The particle that is not found in the nucleus.
d The particle that has no electrical charge.
The particle that has a much lower mass than the others..
17. Calculate the number of protons, neutrons and electrons in the following:
e
Element
Mass Number
Protons
Neon (Z = 10)
Neutrons
Electrons
20
Nitrogen (Z = 7)
14
Gallium (Z = 31)
70
Nickel (Z = 28)
59
Iron (Z = 26)
56
18. Carbon has atomic number 6. It comprises three isotopes, the first with o
neutrons, the second with 7 neutrons, the third with 8 neutrons.
Calculate the mass numbers of the three isotopes and represent them in the
a
form of C
b Explain what is meant by in
Transcribed Image Text:13. Which of the following species would require the highest energy for the removal CHEMISTRY GRADE 11 of one electron? c Ne Mg2+ a dF- 14. Which of the following has the lowest electronegativity? c Beryllium b Na+ 19. Carbon d Boron b Magnesium 15. Which of the following has the smallest radius? c Mg Na Na+ d Mg2+ 20 Part II: Answer the following questions: 2. 16. Identify the following subatomic particles: The number of these in the nucleus is equal to the atomic number. a b The particle that is gained or lost when ions are formed. C The particle that is not found in the nucleus. d The particle that has no electrical charge. The particle that has a much lower mass than the others.. 17. Calculate the number of protons, neutrons and electrons in the following: e Element Mass Number Protons Neon (Z = 10) Neutrons Electrons 20 Nitrogen (Z = 7) 14 Gallium (Z = 31) 70 Nickel (Z = 28) 59 Iron (Z = 26) 56 18. Carbon has atomic number 6. It comprises three isotopes, the first with o neutrons, the second with 7 neutrons, the third with 8 neutrons. Calculate the mass numbers of the three isotopes and represent them in the a form of C b Explain what is meant by in
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