Periodic Table

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Q1. What is the symbol for Gold?

Solution:

The symbol for Gold is Au.

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Q2. What is the period number of Argon? (2020)

Solution:

Argon is located in Period 3 of the periodic table.

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Q3. Which of the following elements is a halogen? (2017) 2017

Solution:

Bromine is a halogen, located in group 17 of the periodic table.

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Q4. Which group in the periodic table contains the noble gases? (2023)

Solution:

Noble gases are found in Group 18 of the periodic table, characterized by their lack of reactivity due to having a full valence shell.

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Q5. Which element has the atomic number 11? (2022)

Solution:

Sodium has the atomic number 11, indicating it has 11 protons.

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Q6. Which element has the atomic number 1?

Solution:

Hydrogen has the atomic number 1.

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Q7. What is the period number of Sodium in the periodic table? (2017)

Solution:

Sodium is in period 3 of the periodic table.

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Q8. Which element has the lowest electronegativity? (2023)

Solution:

Francium has the lowest electronegativity among the given elements.

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Q9. Which of the following elements is a noble gas? (2021) 2021

Solution:

Neon is a noble gas, which is characterized by its lack of reactivity.

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Q10. What is the valency of Oxygen? (2021)

Solution:

Oxygen has a valency of 2, as it needs two electrons to complete its outer shell.