A farmer can be more successful in understanding which plant produces and how to grow plants with a higher degree of photosynthesis with less material and time exhaustion, by recognizing what the limiting factor is.
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Answer:
the right answer is of point no 1
Answer:
- <u>Option B) </u><u><em>Both atoms have Zeff of 1; therefore, Atom D is above Atom E in the same column because of the additional energy level.</em></u>
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Explanation:
<em>Zeff</em> means the effective nuclear charge and it is equal to the atomic number (number of protons) less the core electrons (all the electrons less the valence electrons).
- Zeff=number of protons − number of core electrons
Number of core electrons is equal to the total number of protons less the number of valence electrons, so you get:
- Zeff = # protons - (# total electrons - # valence electrons)
Since, the atoms are neutral, # protons = # total electrons, which yields to:
- Zeff = # total electrons - (# total electrons - # valence electrons)
= # total electrons - # total electrons + # valence electrons
= # valence electrons.
So, we have found that Zeff = # valence electrons
In the image, each circle represents a different energy level, with increasing energy when you move away from the nucleus.
The image is showing that both atoms D an E have one valence electron (the only electron is the outermost energy level). Atoms with the same number of valence electrons are in the same column of the periodic table, so both atoms are in the same column and have Zeff of 1 (each circle represents a different energy level, with increasing energy when you move away from the nucleus).
Atom D has fewer energy levels, so it is above atom E in the periodic table.
Hence, you have found that the image is showing that both atoms have Zeff of 1; therefore, Atom D is above Atom E in the same column because of the additional energy level.
Answer:
11
Explanation:
Atomic number is the number of PROTONS an element has .
Answer:
1.) The total possible combination of alleles for those genes in humans is approximately 70,368,744,177,664. This is trillions of times more combinations than the number of people who have ever lived. This accounts for the fact that nearly everyone, except m0n0zyg0tic twins, is genetically unique.
2.) A hom0zyg0us recessive allele c0mbination contains two recessive alleles and expresses the recessive phen0type. For example, the gene for seed shape in pea plants exists in two forms, one form (or allele) for round seed shape (R) and the other for wrinkled seed shape (r).
4.) If the alleles are heteryg0us recessive, the faulty allele would be recessive and not express itself. Instead, the person would be a carrier. If the alleles are heterozyg0us dominant, the faulty allele would be dominant.
Explanation:
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