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Anni [7]
3 years ago
5

An element's atomic number is 74. How many protons would an atom of this element have?

Biology
1 answer:
Dmitry [639]3 years ago
3 0
Atomic number of an atom equals to the number of nucleus in the nucleus of the atom. Therefore, the answer is 74.

The proton of an element is never changed. No matter if it's an atom or ion. It's like an ID number for an element. It defines the type of element. Don't mix up atomic number with mass number though, mass number is the total sum of of the number of protons and neutrons in an atom.

Theres one more subatomic particle in an atom, that is electrons. But since they're too light, they won't be counted in mass. Also, the number of electrons in an atom equals to the number of proton, also the atomic number. If the number of electrons is different, it's no longer an atom, but an ion.
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Describe one function that is common to both carbohydrates and lipids.
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Providing energy. Carbs are a quick source of energy and easily broken down. Lipids are stored energy that can be broken down when needed. Both provide energy but in different ways
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3 years ago
A group of similar cells that perform a common function
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Answer:

Tissue

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Explanation:

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Which molecule allows a blade of grass to stand up straight?
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A. Polysaccharide, this is because polysaccharides have cellulose which make the grass stand up.
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Word bank: (Thermosphere) (Aurora boreal is) ( Large-scale air turbulence and mixing at this layer) ( Stratosphere) (The coldest
Lyrx [107]
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  • Aurora Borealis - Ionosphere layer of thermosphere.
  • Large-scale air turbulence and mixing at this layer - Troposphere
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Explanation:

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1. Troposphere -

  • The first layer of the atmosphere.
  • Weather occurs in this layer.

2.Stratosphere -

  • The second layer of Earth's atmosphere.
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3. Mesosphere -

  • The third layer above the stratosphere.
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4. Thermosphere -

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  • Warmest layer.
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5 0
3 years ago
Mendel’s finding that the inheritance of one trait had no effect on the inheritance of another became known as the
Lorico [155]

Answer:

The correct answer is- law of independent assortment

Explanation:

Law of independent assortment says that assortment of one gene pair is independent of assortment of other gene pair which means each contrasting gene pair bears no association with other pairs of contrasting character and behave and segregate independently.

This allows the combination of new characters in the offspring. So it helps in increasing the genetic variability in the gene pool. Therefore law of independent assortment tells that inheritance of one trait had no effect on the inheritance of another.

7 0
3 years ago
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