1) <span>this ion is an anion
cations are ions which have given out electrons and are positively charged
anions are ions which have taken in electrons and are negatively charged. the ion given has a negative charge which means it has taken in an electron therefore its an anion.
2)</span><span>what is the chemical symbol of the noble gas this ion is isoelectronic with ? atomic number of the ion is 10, this corresponds to the noble gas Neon - Ne.
</span>chemical symbol is Ne
3) <span>what is the formula of the ion?
the ion has a negative charge of -1. this means it has taken in one electron hence the electronic configuration before taking in the electron, when the </span>atom is neutral is 1s² 2s² 2p⁵
then the atomic number is 9, element with atomic number is fluorine.
therefore element is F
formula of ion is F⁻
empirical formula = when the percentage compositions by mass of elements in a compound are divided by their relative atomic masses.
from the obtained amount the smallest amount will divide all.
the answers can then be rounded off if in decimals or they can be multiplied by 2 if they have .5 decimals e.g 2.5 , 7.5 , etc.
solution: HYDROGEN CARBON OXYGEN
2/1 74/12 24/16
2 6.167 1.5
2 / 1.5 6.167 / 1.5 1.5 / 1.5
1.333 4.111 1
1 4 1
answer : C4OH
HOPE IT HELPED !!!
<u>Answer:</u> The molarity of solution will be 0.049 M
<u>Explanation:</u>
Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L. The formula used to calculate molarity:
We are given:
Given mass of sodium chloride = 10 g
Molar mass of sodium chloride = 58.44 g/mol
Volume of solution = 3.50 L
Putting values in above equation:
Hence, the molarity of solution will be 0.049 M
This interaction must be one of the intermolecular forces, particularly, Van der Waals forces. From the description given, this force is called <em>induced dipole-induced dipole forces</em>. Dipole is defined as the separation of positive and negative charges. This type of intermolecular force is very weak compared to hydrogen bonding.
A) Ca, Mg, Be
The first ionization energy increases as we move up a group because of the smaller atomic size and less shielding of electrons.
