Use the equation:
pOH= -log[OH]
Hope this helps!
Answer:
10 neutrons
Explanation:
The mass of is made up of the total protons and neutrons in an atom.
Each particle has a mass of 1 amu (atomic mass unit).
All fluorine atoms have 9 protons.
If each proton is 1 amu, the protons must contribute 9 amu to the total mass of the atom (9 x 1 amu = 9 amu).
This means the neutrons must contribute a total mass of 10 amu (18.998 amu - 9 amu = ~10 amu).
If each neutron has a mass of 1 amu, there must be 10 neutrons in a fluorine atom (10 amu / 1 amu = 10 amu).
Explanation:
₁₄Si 1s²2s²2p⁶3s²3p².
Principal quantum number (n=3) have four electrons (3s²3p²).
2) ₁₉K 1s²2s²2p⁶3s²3p⁶4s¹.
Azimuthal quantum number (l=o) have seven electrons (1s²2s²3s²4s¹).
3) ₈₀Hg [Xe] 4f¹⁴5d¹⁰6s².
Principal quantum number (n=4) have thirty-two electrons (4s²4p⁶4d¹⁰4f¹⁴).
The principal quantum number is one of four quantum numbers which are assigned to each electron in an atom to describe that electron's state.
The azimuthal quantum number is a quantum number for an atomic orbital that determines its orbital angular momentum and describes the shape of the orbital.
Answer:
Sand - A network
Dry Ice - Molecule
Lime - Ionic
Gold bar - Metallic
Explanation:
The items are;
dry ice (CO2)
lime (CaO)
gold bar (Au)
sand (SiO2)
The options are;
molecular,
an ionic,
a network,
or a metallic solid
Among the items, the only metal present is the gold bar. So it makes sense that the gold bar is matched with 'Metallic solid'.
The Calcium oxide is an 'ionic' compound as it contains the calcium ion and the oxygen ion bonded by an electrovalent bond.
Dry Ice, CO2 is a molecule composed of one carbon atom bonded to two oxygen atoms via two double bonds. So it is matched with 'Molecular'
The only option left is 'A network' and it is matched with Sand (SiO2).
The result is given as;
Sand - A network
Dry Ice - Molecule
Lime - Ionic
Gold bar - Metallic
Nitrous oxide .
The Lewis dot structure is attached