Lower left corner and the upper right corner before the noble gases
Number of valence electrons
Explanation:
The most reactive elements are the most electropositive and electronegative elements.
Francium is the most reactive metal and flourine the most reactive non-metals.
Francium is the most electropositive metal and fluorine is the most electronegative non-metal.
Electropositivity is the ability of an atom to willingly lose its valence electrons. This is typical of metals.
Electronegativity is the ability of atoms to attract the shared electrons to themselves in a bond.
- An element is more reactive than another based on the number of valence electrons it has.
- The valence electrons determines how reactive an atom is or would be.
- Elements that requires just one or two electrons to complete their octet would be highly reactive and dire need to find such electron.
- Also, elements with just an electron above the stable configuration will easily want to lose it.
- Elements with a complete configuration will not be reactive.
The valence electrons are the electrons in the outer most shell of an atom used in chemical bonding.
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These are the formulas of each compound mentioned:
1) Hydrogen chloride: HCl
2) Sodium hydrogen carbonate: NaHCO3 , this is also known as sodium bicarbonate. The number 3 to the right of O is a subscript.
3) Sodium chloride: NaCl
4) Carbon dioxide: CO2. This is also known as carbon anhydride. The number 2 to the right of O is a subscript.
5) Water: H2O. The number 2 to the right of H is a subscript.
The the chemical equation is:
HCl + NaHCO3 → NaCl + CO2 + H2O
Check the balance
element left side right side
H 1+1 = 2 2
Cl 1 1
Na 1 1
C 1 1
O 3 2+1 = 3
Then, given that the number of each element on the left side is equal to the number of elements in the right side, the equation is balanced.
Answer:
1
Explanation:
because there barely eating and there eating protien and healthy foods
Answer:
They both have the same number of atoms
Explanation:
The number that indicates the amount of particles in a compound is the Avogadro's number (NA).
It does not matter the mass of compound we have, If we have 1 mol we will be sure that we are talking about 6.02×10²³ particles
6.02×10²³ represents the amount of atoms in twelve grams of 12-pure carbon and it is considered a reference to measure the amount of all kinds of substances present in a given system.
