Which shows the electron configuration for zinc (zn)? [kr]5s24d10 [kr]5s24d6 [ar]4s23d9 [ar]4s23d10

Answer. The electronic configuration of the zinc will be

Explanation:

Zinc belongs to 3d series of transition metal of the periodic table. Its atomic number is 30 which means it contains 30 electrons.  

The nearest noble gas which lies close to zinc is argon (atomic no = number of electrons = 18) and thus the electronic configuration can be represented as:

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.