Answer:
3
Explanation:
Applying,
= R/R'............... Equation 1
Where n' = number of halflives that have passed, R = Original atom of the substance, R' = atom of the substance left after decay.
From the question,
Given: R = 40 atoms, R' = 5 atoms
Substitute these values into equation 1
= 40/5
= 8
= 2³
Equation the base,
n' = 3
Answer:
The five steps involved in the process of natural selection are
Variation • Inheritance • Selection • Time • Adaptation
☆anvipatel77☆
•Expert•
Brainly Community Contributor
Mole<span>: the amount of a substance that contains 6.02 x </span>10<span>. 23 respective particles of that substance. Avogadro's number: 6.02 x </span>10<span>. 23. Molar Mass: the mass of one </span>mole<span> of an element. CONVERSION FACTORS: 1 </span>mole<span> = 6.02 x </span>10<span>. 23 </span>atoms<span> 1 </span>mole<span> = </span>atomic<span> mass (g). Try: 1. How </span>many atoms<span> are in 6.5</span>moles<span> of zinc</span>
Answer:
This ion is in an octahedral geometry.
See the diagram attached for the Lewis Dot Structure of the iodide hexafluoride cation 
. (Created with Google Drawings.)
Note that in this diagram,
- A pair of double dots on an atom represent a lone pair of electrons.
- A single dash represents a single chemical bond.
- The square bracket and the superscript indicates that this structure is charged.
Explanation:
The iodine in forms an expanded octet. There are twelve valence electrons in total around this atom.
- Each of the six fluorine atom needs 8 - 7 = 1 electron to achieve an octet of eight electrons.
- The iodine atom needs 12 - 7 = 5 electrons to achieve an expanded octet of twelve electrons.
- The ion carries a positive charge of +1. Atoms in this ion lacks one extra electron.
Overall, there needs to be 
more electrons for seven atoms to achieve an octet. They will form half that number of chemical bonds. That's 
bonds.
Now consider: what will be the geometry of this ion? There are six chemical bonds but no lone pair around the central iodine atom. The six 
bonds repel each other equally. They will stay as far apart from each other as possible. As a result, the shape of the ion will be octahedral. Each of the fluorine atoms occupies a vertex.
Answer:
please give me brainlist and follow
Explanation:
About 110 g . Explanation: Your tool of choice here will be the solubility graph for potassium nitrate, KNO3 , in water.
