1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Delvig [45]
3 years ago
12

How many neutrons does the element sodium (Na) contain?

Biology
1 answer:
sweet-ann [11.9K]3 years ago
8 0

Answer:

a) 12 neutrons

Explanation:

The atomic mass is 22.990, which can be rounded to 23 and is the combination of protons and neutrons. The atomic number is 11 (protons), and 23-11=12, whoch would be the neutron number

Hope this helps :)

You might be interested in
What evidence is there that the 15 species of finch all evolved from one common ancestor?
antoniya [11.8K]
Darwin’s Finches: Darwin observed that beak shape varies among finch species. He postulated that the beak of an ancestral species had adapted over time to equip the finches to acquire different food sources. This illustration shows the beak shapes for four species of ground finch: 1. Geospiza magnirostris (the large ground finch), 2. G. fortis (the medium ground finch), 3. G. parvula (the small tree finch), and 4. Certhidea olivacea (the green-warbler finch) the Grants measured beak sizes in the much-reduced population, they found that the average bill size was larger. This was clear evidence for natural selection of bill size caused by the availability of seeds. The Grants had studied the inheritance of bill sizes and knew that the surviving large-billed birds would tend to produce offspring with larger bills, so the selection would lead to evolution of bill size. Subsequent studies by the Grants have demonstrated selection on and evolution of bill size in this species in response to other changing conditions on the island. The evolution has occurred both to larger bills, as in this case, and to smaller bills when large seeds became rare.

6 0
3 years ago
Pancreas is called mixed gland. Why?​
dexar [7]

Answer:

because it has both endocrine and exocrine functions .

5 0
3 years ago
Read 2 more answers
The physical characteristics of an organism is its: phenotype. genotype. alleles. gametes.
Veseljchak [2.6K]
The physical characteristics of an organism is its phenotype. I remember this because phenotype and physical both start with 'ph.'

Hope this helps. Good luck! :)
6 0
3 years ago
Read 2 more answers
HELP I NEED HELP!! PLEASE???!!
worty [1.4K]

Answer:

A

Explanation:

it going to a residential area to the water shed meaning that the only possible correct answer.

5 0
3 years ago
In the 1800s, how did Darwin explain the origin of species?
Aleksandr [31]

In the 1800s, Darwin explains the origin of species. As species originate through adaptation by natural selection.

Answer: Species originate through adaptation by natural selection

<u>Explanation: </u>

The Origin of species through natural selection is a pioneering scientific effort of the British naturalist Charles Darwin in England. Darwin's theory is that organisms are gradually evolving through what is called "natural selection"

It is a process in which organisms change due to hereditary changes in physical or behavioural traits. Changes that allow the body to better adapt to its surroundings, help it survive and have more offspring.

7 0
3 years ago
Other questions:
  • What do plant cells have that animal cells dont
    6·2 answers
  • 3. When are moths most active? Why?
    15·1 answer
  • How have human factors contributed to climate change, and what evidence supports these factors?
    7·1 answer
  • Which of the following is a reason why cells divide
    11·2 answers
  • Which is most likely an effect of the evolution of a larger brain in humans​
    6·1 answer
  • Which food item contains a lot of processed simplw surgars
    5·1 answer
  • During prophase I of meiosis, these pairs form a tetrad in a process called:
    8·2 answers
  • In the investigation where we combined the bath bomb with water, we saw bubbles forming but we did not see an increase in the ov
    13·2 answers
  • Why must both constricting and posionous snakes eat their prey alive?
    10·1 answer
  • 2. I need help with this question
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!