Copy of CI Skill Check #3.2 (Unit 2 Investigation 3 Experience 2) (7/30/2025)
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Last updated 9 months ago
5 questions
Required
2
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2
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2
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1
Question 1
1.
Question 2
2.
Question 3
3.
Question 4
4.
Question 5
5.
The valence electrons of an atom do not experience the full attractive force of protons in the atom’s nucleus due to the presence of inner core electrons. This is known as the...
ionization energy effect.
shielding effect.
nuclear charge effect.
periodic law effect.
As you go from left to right across a period on the periodic table, for example Lithium to Neon, the number of protons increases. This causes the overall nuclear charge to _________.
Increase
Remain the Same
Decrease
Calculate the effective nuclear charge for Aluminum. Zeff = Z - S
3-
0
3+
Elements in group 1 tend to give and electron away to elements in group 17 to form a chemical compound. For the given elements, which reaction will proceed most slowly or be the hardest to occur?
Li and F
Na and Cl
Li and Cl
Na and F
A mystery element has 19 protons. Which one of the following statements is true about the element?
The element belongs in period 2 and is classified as a halogen.
The element belongs in period 3 and is classified as a noble gas.
The element belongs period 4 of the periodic table and is classified as an alkali metal.
The element belongs in period 5 of the periodic table and is classified as an alkaline earth metal.