No products in the cart.

  1. Homework Help
  2. CBSE
  3. Class 11
  4. Chemistry

How would you justify the presence …

CBSE, JEE, NEET, CUET

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

Install Now
How would you justify the presence of 18 elements in the 5th period of periodic table ? Explain

    • Posted by Kamlesh Kumar 7 years, 5 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Sujatha Vijay 7 years, 5 months ago

    We start the 5th period with 4s orbital. We can add 2 electrons in 4s. Then we fill 6 electrons in 4p orbital. Further we start filling the 4d orbital which can take 10 electrons. So in the 4th principal quantum energy stater, we can fill 18 electrons. Thus 5th period has 18 elements.

    1Thank You

    ANSWER
    https://examin8.com Test

    Related Questions

    An organic compound contain 16.27 carbon, 0.677 hydrogen and 72.2% chlorine and it's MM is 147.5 amu. Find it's molecular formula

    • Posted by Anshi Shrivastava 1 year, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    Calculate the concentration of nitric acid in moles per litre in a sample which has a density 1.41gml-1. And the mass percent of nitric acid in it being 69%

    • Posted by Haleema Sadiya 1 year, 5 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    A mixture of 24~dm^{3} of hydrogen and 100~dm^{3} of oxygen was ignited and the reaction mixture was cooled to room temperature and pressure. What will be volume of gases remaining of the end of the reaction?

    • Posted by Deepak Mamgaei 1 year, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    How to calculate na2so4 mass percent with step by step

    • Posted by "Serai✨ Wallance" 1 year, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    Calculate the number of atoms of each type in 3.4 to ML of nitrogen gas at standard temperature and pressure??

    • Posted by Arju Jaat 1 year, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    What is the no. Of moles find in 90 g of H20

    • Posted by Naman Mehra 1 year, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    The uncertainty in position and velocity 10-¹⁰ and 5.27×10-²⁴m/srespectively calculate the mass of the particle.

    • Posted by Shikha Yadav 1 year, 5 months ago

    CBSE > Class 11 > Chemistry
    • 2 answers
    What are all the formulas used in chapter basic concepts of chemistry

    • Posted by Parneet Kaur 1 year, 1 month ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    25 chemical compounds with chemical formula

    • Posted by Rihan Mehta 1 year, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    74 g of calcium hydroxide Ca(OH)2 in 1 liter

    • Posted by Shaila Bombe 1 year, 6 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    myCBSEguide App

    myCBSEguide

    Trusted by 1 Crore+ Students

    Install Now

    Test Generator

    Test Generator

    Create papers online. It's FREE.

    Try Now

    CUET Mock Tests

    CUET Mock Tests

    75,000+ questions to practice only on myCBSEguide app

    Install Now
    Google Play

    Download myCBSEguide App

    All Courses

    Other Websites

    CBSE Courses

    Resources

    Corporate

    NCERT Solutions

    CBSE Sample Papers

    All Content and Intellectual Property is under Copyright Protection | myCBSEguide.com ©2007-2026