4.2 Periodic Table Properties: Core Charge and Atomic Radius
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Last updated over 3 years ago
18 questions
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Question 3
3.
If an element has a greater core charge it will have a ____________ electrostatic attraction holding the protons and electrons together within the atom.
View the Model 2 Video to help you with this section.
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View the Model 3 video to help you with this part.
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Question 10
10.
Describe any patterns or trends you notice about the number of valence electrons and core charge as you go acrossa period on the periodic table.
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Question 13
13.
Click on Edit Background to answer question 13.
View the Model 4 video to help you with this part.
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Question 14
14.
List at least 2 patterns that you notice from the data table and Periodic Table showing the atomic radius of elements.
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Question 16
16.
Go Back to question 13 and add at least 1 additional Reason to explain why the claim you chose is true.
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Question 17
17.
Compare the sizes of positive cations to the sizes of negative anions.
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Question 18
18.
Question 1
1.
Which of the following are true? Select all that apply
Question 2
2.
The strength of the electrostatic force of attraction within atoms is between the positively charged ______________ and negatively charged __________________.
Question 4
4.
Draw a Bohr Diagram of Be
Question 5
5.
Drag the correct number under each category for the valence electrons and core charge for Be.
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# of valence electrons
Question 6
6.
Draw a Bohr Diagram of B.
Question 7
7.
Drag the correct number under each category for the valence electrons and core charge for B.
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# of valence electrons
Question 8
8.
Question 9
9.
Drag the correct number of valence electrons and core charge for each element.
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Question 11
11.
Drag the numbers to each term below to determine the # of energy levels/shells, valence electrons and core charge for Ne
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Question 12
12.
Drag the numbers to each term below to determine the # of energy levels/shells, valence electrons and core charge for Na
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Question 15
15.
Why does sodium (Na) have a much larger atomic radius than argon (Ar) even though they are in the same period? CHOOSE THE BEST OPTON.
Use what you know about atomic structure, core charge and atomic radius patterns to explain a possible reason for why the sizes of cations are different than the sizes of anions.
Core Charge
Core Charge
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C
N
O
F
Ne
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# of energy levels/shells
# of valence electrons
Core Charge
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8
# of energy levels/shells
# of valence electrons
Core Charge
Na has more electrons than Argon.
Na has only 1 valence electron while Ar has 8.
Na is a metal and Ar is a nonmetal
Na has 1 more shell with electrons than Ar does
The nucleus of Na has a much weaker attraction to its valence electrons than Ar does
The nucleus of Na has a much stronger attraction to its valence electrons than Ar does