Yes
Explanation:
Valence electrons on the periodic table of elements shows a repeating or periodic pattern. There is a noticeable pattern that can be deduced from the valence electrons in the orbitals of atoms.
Valence electrons are the electrons in the outermost shell of an element
The periodic table arranges elements based on their atomic numbers. This number denotes the number of protons or electrons an atom contains.
- The table is divided into groups which are the vertical columns into which elements are classified.
- The horizontal rows are called periods.
- A period begins with one valence electron and ends with an atom having complete outer shell structure of an inert gas.
- Down a group the valence electron is the same. The group number denotes the number of valence electrons in a group. Group 1 has just one valence electron in their outermost shell.
Learn more:
Valence electrons brainly.com/question/12580690
Periodic table brainly.com/question/2014634
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Answer:
The frequency of coral diseases has increased significantly over the last 10 years, causing widespread mortality among reef-building corals. Many scientists believe the increase is related to deteriorating water quality associated with human-made pollutants and increased sea surface temperatures.
Explanation:
There are 4 energy sublevels are present in the principal energy level n = 4.
<h3>What is sublevels?</h3>
Sub-level is a type of level that is lower than another level or it is a part or component of a big level. S, p, d and f are the four energy levels in which electrons are present.
So we can conclude that 4 energy sublevels are present in the principal energy level n = 4.
Learn more about energy here: brainly.com/question/13881533
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Answer:
oxygen consists of 3 isotopes and carbon consists of 2 isotopes
Explanation:
oxygen: O16, O17 and O18
Carbon: C12 and C13
