Answer:
SI, The International System of Units is a scientific method of expressing the magnitudes or quantities.
- amount of substance (mole)
- time (second)
- length (metre)
- mass (kilogram)
- electric current (ampere)
Hope this helps!
Answer:
- <em>The effective nuclear charge of an electron in a 5p orbital of iodine is </em><u> 5</u>
Explanation:
The <em>effective nuclear charge, Zeff </em> is the net charge when you subtract the charge of the shielding electrons (number of electrons between your electron and the electrons in levels closer to the nucleus than yours) from the total nuclear charge (number of protons). Too many words, so see the equation:
- Zeff = atomic number - shielding electrons
Iodine has atomic number (number of protons) equal to 53.
Hence, the neutral atom also has 53 electrons.
The electron configuration of iodine is [₃₆Kr] 5s² 4d¹⁰ 5p⁵ (36 + 2 + 10 + 5 = 53)
So, iodine has 5 p electrons and they belong to the highest energy level. The remaining 53 - 5 = 48 electrons are in lower energy levels, and they are the shielding electrons. That is why the shielding parameter is 48.
So, you just must use the equation:
- Zeff = atomic number - shielding electrons
- Zeff = 53 - 48 = 5 ← answer
Your answer is (d) plasma. Have a nice day.
Answer:
1st dessert - Hydrosphere
2nd- ocean-Geosphere
3rd-sky- Atmosphere
4th- raspberry- biosphere
Explanation:
Many types of atoms is the correct answer