
Periodic Trends

Quiz
•
Chemistry
•
11th Grade
•
Hard
Standards-aligned
Leonardo Montoya
FREE Resource
40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are periodic trends?
Periodic trends are patterns in the periodic table that show the variation of certain properties of elements.
Periodic trends are the daily changes in the stock market.
Periodic trends are the seasonal changes in weather patterns.
Periodic trends are the fluctuations in daily temperature.
Answer explanation
Periodic trends refer to the observable patterns in the periodic table, such as atomic radius, electronegativity, and ionization energy, which change predictably across periods and groups.
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following increases across a period from left to right?
A) Atomic Radius
B) Ionization Energy
C) Metallic Character
D) Nonmetallic Character
Answer explanation
Ionization energy increases across a period from left to right due to increasing nuclear charge, which attracts electrons more strongly, making them harder to remove. Thus, the correct answer is B) Ionization Energy.
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the periodic table, which trend decreases down a group?
A) Electronegativity
B) Atomic Radius
C) Electron Affinity
D) Ionization Energy
Answer explanation
Electronegativity decreases down a group due to increased atomic size and shielding effect, making it harder for atoms to attract bonding electrons. Thus, the correct answer is A) Electronegativity.
Tags
NGSS.HS-PS1-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to Coulomb's Law, what happens as the atomic number increases?
The nuclear attraction for electrons decreases.
The nuclear attraction for electrons increases.
The number of protons decreases.
The number of protons remains the same.
Answer explanation
As the atomic number increases, the number of protons in the nucleus increases, leading to a stronger nuclear attraction for electrons. This increased positive charge pulls electrons closer, enhancing their attraction.
Tags
NGSS.HS-PS2-4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fill in the blank: As the atomic number increases, the nuclear attraction for electrons ______.
increases.
decreases.
remains the same.
fluctuates.
Answer explanation
As the atomic number increases, the number of protons in the nucleus increases, enhancing the nuclear attraction for electrons. Therefore, the correct answer is that the nuclear attraction for electrons increases.
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between the number of protons and the strength of positive nuclear charge?
As the number of protons increases, the strength of positive nuclear charge decreases.
As the number of protons increases, the strength of positive nuclear charge increases.
The number of protons does not affect the strength of positive nuclear charge.
Answer explanation
The strength of positive nuclear charge is directly related to the number of protons in the nucleus. As the number of protons increases, the positive charge also increases, leading to a stronger nuclear attraction to electrons.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the atomic radius?
The distance between the nuclei of two different atoms
One-half the distance between the nuclei of two identical atoms bonded together
The distance from the nucleus to the outermost electron
The distance between the nucleus and the electron cloud.
Answer explanation
The atomic radius is defined as one-half the distance between the nuclei of two identical atoms bonded together. This measurement reflects the size of the atom in a bonded state, making it the correct choice.
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