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solniwko [45]
3 years ago
13

What are three characteristics that these biomes have in common?

Biology
1 answer:
BartSMP [9]3 years ago
3 0
Wheres the link at?????????????
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The genetic code for one amino acid molecule consists of A) five sugar molecules B) two phosphates C) three nucleotides D) four
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c

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What Occurs when the agents of erosion (water, wind, ice, gravity) slow down
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then landscape would rarely happens and the there will be a lot of rocks  smooth surface

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3 years ago
If an atom has 15 electrons, how many electrons are in the n=1 energy level?
IRISSAK [1]

Answer:

In the n=1 energy level, the atom has 2 electrons

Explanation:

Electrons orbit the nucleus of an atom in multiple rings (energy levels). The first ring of the electron can only hold 2 electrons. After that, electrons are added to the second ring. Excluding the first ring, all other rings can hold a maximum of 8 electrons.

For example, Oxygen is an atom with 6 electrons. The first energy level contains 2 electrons, and the second energy level contains 4 electrons. The second energy level has room for up to 4 more electrons.

In your example of an atom with 15 electrons, there would be 2 electrons in the first ring, 8 electrons in the second ring, and 5 electrons in the third and final ring.

To summarize, all atoms have a first energy level containing 2 electrons, and all other energy levels can contain 8 electrons. This is true no matter the number of electrons.

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