1. <span>The region in which an electron is most likely to be found is called an orbital.
2. </span>An atom in which an electron has moved to a higher energy level is in an excited state.
3. When Mendeleev organized elements in his periodic table in order of increasing mass, elements with similar properties were in the same column.
4. Mendeleev’s periodic table was useful because it enabled scientists to predict properties of unknown elements.
Oil and acid separate into there own layers and can not mix with out being forced by something
Mercury is a chemical element with the symbol Hg and atomic number 80. The electron configuration of Hg is 6s2 4f14 5d10.
<h3>
How to write an electronic configuration?</h3>
1. Identify the given element and its atomic number from the periodic table.
2. Write the electron configuration by the energy level and the type of orbital first, then the number of electrons present in the orbital as superscript.
The easiest way to write the electronic configuration for any element is by using a diagonal rule for electron filling order in the different subshells according to the Aufbau principle.
The 3 rules for writing the electron configuration in the orbital box diagram are – the Aufbau rule, the Pauli-exclusion rule, and Hund's Rule.
To learn more about electronic configuration, refer
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Analyzing a biomolecule X, a scientist verifies that it is made up of Carbon, Hydrogen, Oxygen and Nitrogen, in addition to releasing water when it joins with other similar molecules to form polymers. Considering these antecedents, it can be inferred that biomolecule X corresponds to: A Steroids B fatty acid C nucleotide D amino acid E monosaccharide (for people who dont speak spanish)
ok you answer is probably A
if wrong C maybe
~hope~
Answer:
because it cannot be broken down into a simpler substance
Explanation: