Answer:
The characteristics are as follows:
-It is microscopic.
-It contains three sub atomic particles namely: electrons, protons and neutrons.
-It is the smallest unit of any substance (except for living bodies since smallest unit of them is cell).
-When seen from microscope atoms appear to be blur, spheres.
-They form ions(by losing or gaining electrons) and molecules(by combining with itself or other atoms).
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developed as the organism grows
Explanation:
Traits are characteristics that are developed as an organism grows.
The term is mostly used in the field of genetics to describe the attribute of an organism.
- Traits are usually synonymous to phenotypes.
- They are the outward expression of a gene.
- These characters are developed as an organism grows as influenced by the environment.
- The environment plays a very important role in manifestation of trait.
learn more:
Polygenetic trait brainly.com/question/4161162
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Answer:
64.7g
Explanation:
The balanced chemical equation of this question is as follows;
AlI + HgCl2 → HgI + AlCl2
Based on the above equation, 1 mole of AlI (aluminum monoiodide) reacts to produce 1 mole of HgI (mercury iodide).
Using mole = mass/molar mass to convert mass of HgI to moles.
Molar mass of HgI = 200.59 + 127
= 327.59g/mol
Mole = 138/327.59
= 0.42mol
- If 1 mole of AlI (aluminum monoiodide) reacts to produce 1 mole of HgI (mercury iodide)
- Then 0.42 mol of HgI will be produced by 0.42mol of AlI.
Using mole = mass/molar mass
Mass = mole × molar mass
Molar mass of AlI = 27 + 127
= 154g/mol
Mass of AlI = 0.42 × 154
= 64.7g of AlI
Answer:
because weight depends on the gravity, gravity decrease s with increasing altitude,hence I have less weight
Atomic number (Z) of tungsten is 74
Mass number (A) of tungsten is 184
Now:
Atomic number of an element = Number of protons = Number of electrons
Mass number = Number of Protons + Number of neutrons
In the case of tungsten
Total Number of electrons = 74
Jeffrey has already added 21 electrons
Number of electrons needed = 74 - 21 = 53
Ans (D) 53 more electrons are needed to complete the neutral atom of tungsten.
