Atoms have a tendency to complete their outer energy level. This is known as _____.

Biology

2 answers:

Nana76 [90]3 years ago

6 0

It would be the Octet Rule.

stepan [7]3 years ago

6 0

Answer:

the octet rule

Explanation:

The Octet Rule states that the atoms of the elements bond together in an attempt to complete their valence layer (last layer of the electrosphere). The name “octet rule” arose from the established amount of electrons for the stability of an element, ie the atom is stable when it has 8 electrons in its valence layer.

To achieve such stability as suggested by the Octet Rule, each element must gain or lose (share) electrons in the chemical bonds, so they acquire eight electrons in the valence shell.

You might be interested in

What “trait” determines whether two animals belong to the same species?

ruslelena [56]

B I believe would be the answer to your question above

6 0

4 years ago

If 32 packed volume units of cells are separated from 46 volume units of plasma from a blood sample, the haematocrit is _______

nordsb [41]

Answer:

If 32 packed volume units of cells are separated from 46 volume units of plasma from a blood sample, the hematocrit is 41,02% percent. The hematocrit value is within the normal range.

Explanation:

Hello!

Hematocrit (or packed cell volume -PCV-)is defined as the percentage of red blood cells (vol%) in a blood sample. One common method of determining it is by centrifuging a heparinized blood sample in a capillary tube at 10 000 RPM for five minutes. This separates the blood sample in two layers, formed elements (RBC and WBC) and Plasma.

The length of the layers is directly measured from the tube and represents the volume of packed cells and plasma. Since the number of white cells is negligible compared to the number of red cells, the formed elements are considered to represent the red blood cells.

The hematocrit can be calculated as the volume of packed cells divided by the total volume of the blood sample.

$\frac{PCV}{TOTAL(pcv+plasma} * 100$

In the question:

$\frac{32}{32+46} * 100$ = $\frac{32}{78} * 100$ = 41,02%

In humans the normal hematocrit range is 40,7% to 50,3% for men and 36,1% to 44,3%. Taking these reference values into consideration, this sample is within the normal range.

I hope you have a SUPER day!

4 0

4 years ago

Which of the following lists the levels of organizational hierarchy from most complex to least complex?

vovikov84 [41]

The right choice of them is biosphere, community, and organism.

5 0

4 years ago

Read 2 more answers

The study of environmental science must involve discussion of human culture and people’s oppinions on politics and economics

Reptile [31]

False politics & economics have to do with government not the environment but that’s pretty self explanatory