Ask Question
ChemistryChemistry
19 February, 21:24

Which of these elements has an electron configuration of [Kr]5s2?

barium

calcium

rubidium

strontium

+2
Answers (2)
  1. 20 February, 00:27
    0
    Which of these elements has an electron configuration of [Kr]5s2?

    The element that has an electron configuration of [Kr]5s2 is strontium. The rest of the given choices do not answer the question above.
  2. 20 February, 01:11
    0
    Given this abbreviated electron configuration, we begin from the row of the periodic table that contains Krypton (Kr). Then since the remaining electrons are 5s2 (which indicates 2 electrons in the 5s orbital), we check the next row (the 5th row) and find the 2nd element, which would contain two electrons. The first element is rubidium, while the second is strontium, so this means that Sr is the final answer.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Which of these elements has an electron configuration of [Kr]5s2? barium calcium rubidium strontium ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers
You Might be Interested in
How many atoms are there in one mole of carbon? (Show Work)
Answers (1)
The requirements of atoms to be able to participate in hydrogen bonding with a hydrogen atom include all of the following except A. atoms must have one lone pair of electrons. B. atoms must be electronegative. C. atoms must be small. D.
Answers (1)
Why must sample spots be above the solvent in paper chromatography
Answers (1)
Identify the examples of diffusion in the list below. Check all that apply. A teacher takes the cap off a permanent marker. A few minutes later, students at the back of the classroom complain about the odor of the marker.
Answers (1)
Spread Spectrum (SS) encoding: a) Name four spread spectrum techniques. b) Which one of them was originally devised against eavesdropping in the military environment?
Answers (1)
New Questions in Chemistry
How many grams of water form when 1.24 l of gas h2 at stp completely reacts with o2?
Answers (1)
According to the following reaction, how many grams of hydrogen peroxide ( H 2 O 2 ) are necessary to form 0.182 moles oxygen gas? hydrogen peroxide ( H 2 O 2 ) (aq) → water (l) + oxygen (g)
Answers (1)
Using the bohr model describe the changes in electrons energy and electron location when an atom changes from the ground state to an excited state.
Answers (1)
Sally is making a model of gold for her chemistry class. She has foam balls for the protons, neutrons, and electrons. She has added 70 protons to her model so far. How many more protons does she need to add to complete her neutral atom of gold?
Answers (1)
How many electrons are in an atoms of germanium
Answers (2)
Home » Chemistry » Which of these elements has an electron configuration of [Kr]5s2? barium calcium rubidium strontium
Sign Up Forgot Password?