The answer is Make sure you are working with a properly balanced chemical equation.
Convert grams of the substance given in the problem to moles.
Construct two ratios - one from the problem and one from the chemical equation and set them equal. ...
Convert moles of the substance just solved for into grams. Step 1: Convert known reactant mass to moles. ...
Step 2: Use the mole ratio to find moles of other reactant. ...
Step 3: Convert moles of other reactant to mass. Balance the equation.
Convert units of a given substance to moles.
Using the mole ratio, calculate the moles of substance yielded by the reaction.
Convert moles of wanted substance to desired units.
Answer :
Explanation :
The aluminium and fluorine react to give ionic compound aluminium fluoride.
Aluminium has 1 valence electrons in their shell and fluorine has 7 valence electrons in their shell.
For the complete octet, both aluminium and fluorine exchange valence electrons to form an ionic compound.
The aluminium donates its three valence electrons to three fluorine atoms and they form one and three ions.
Electron transfer image is shown below.
An element can be represented symbolically in terms of its atomic number and mass number as:
\[_{Z}^{A}\textrm{X}\]
where X = symbol of the element
A = atomic mass
Z = atomic number
In this case we have the representation as:
\[_{0}^{1}\textrm{n}\]
where n = symbol for neutron
mass number of neutron = 1
charge/atomic number of neutron = 0
Ans: D) A neutron of zero charge and one unit mass