Ask Question
ChemistryChemistry
22 March, 01:18

Identify the number of core and valence electrons for each atom. Xe : core electrons Xe : valence electrons Ca : core electrons Ca : valence electrons Br : core electrons Br : valence electrons

+3
Answers (1)
  1. 22 March, 01:25
    0
    Xe : core electrons = 46

    Xe : valence electrons = 8

    Ca : core electrons = 18

    Ca : valence electrons = 2

    Br : core electrons = 28

    Br : valence electrons = 7

    Explanation:

    Xe atom has atomic number 54, as a group 8 element, it has a valence (outermost) electrons of 7 meaning the rest of 46 electrons are core (inner) electrons. Ca atom is in group 2 in the periodic table. Having 20 electrons, two electrons are on the valence shell while the rest 18 are cor electrons. bromine is a halogene (group 7) and hence 7 valence electrons. it has 35 electrons. it has 28 core electrons.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Identify the number of core and valence electrons for each atom. Xe : core electrons Xe : valence electrons Ca : core electrons Ca : ...” in 📗 Chemistry if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
Write a word equation for the extraction of tin from tin oxide using carbon
Answers (1)
Using the Brønsted-Lowry concept of acids and bases, identify the Brønsted-Lowry acid and base in each of the following reactions: HSO3 - (aq) + H2O (l) →H2SO3 (aq) + OH - (aq) (CH3) 3N (g) + BCl3 (g) → (CH3) 3NBCl3 (s) Drag the appropriate items to
Answers (1)
What are ribosomes made of?
Answers (1)
Is a iron nail solid attracted to a magnet and soluble in water
Answers (2)
Which pair below describes isotopes of the same element? A. an atom 6 protons and 8 neutrons - an atom with 8 protons and 6 neutrons B. an atom with 6 protons and 6 neutrons - an atom with 6 protons and 7 neutrons C.
Answers (1)
New Questions in Chemistry
Using the periodic table, determine the number of neutrons in a carbon.
Answers (1)
Sailin Steve likes to test the buoyancy of different objects. He threw a spherical object into a fluid that has a greater density than the object does. He also threw a square object into the fluid that has a greater density than the fluid.
Answers (1)
The sun is directly overhead at the equator on what day of the year? A. Zenith B. Solstice C. Equinox D. Ecliptic Isn't it the Solstice?
Answers (1)
In the SI system of units, the mole is one of seven base units. It is frequently used in chemical calculations. However, a mole of something is just a particular quantity of it.
Answers (1)
A student used a DCP solution (standardized to 9.98x10-4M) to analyze a sample of extract from 2.50g of solid food. The titration required 22.49mL of DCP. 87.00% of all the ascorbic acid in the food was collected in the extract.
Answers (1)
Home » Chemistry » Identify the number of core and valence electrons for each atom. Xe : core electrons Xe : valence electrons Ca : core electrons Ca : valence electrons Br : core electrons Br : valence electrons
Sign Up Forgot Password?