B) Mg2F2.
C) MgF.
D) MgF2.
Answer is: D) MgF₂.
Magnesium fluoride is salt, ionic compound.
1) Magnesium (Mg) is metal from 2. group of Periodic table of elements and has low ionisation energy and electronegativity, which means it easily lose valence electons (two valence electrons).
Magnesium has atomic number 12, which means it has 12 protons and 12 electrons. It lost two electrons to form magnesium cation (Mg²⁺) with stable electron configuration like closest noble gas neon (Ne) with 10 electrons.
Electron configuration of magnesium ion: ₁₂Mg²⁺ 1s² 2s² 2p⁶.
2) Fluorine (F) is nonmetal with greatest electronegativity, which meand it easily gain electrons.
Fluorine jas atomic number 9, which means it has 9 protons and 9 electrons. It gain one electron to form fluorine anion (F⁻) with stable electron configuration like closest noble gas neon (Ne) with 10 electrons.
Electron configuration of fluorine ion: ₉F⁻ 1s² 2s² 2p⁶.
the action of a battery
passing through a circuit element
water pressure
Answer: The potential of electrons in a circuit can be increased by the action of the battery.
Explanation:
A battery is a source of energy. It provides push to voltage so that the current can flow in the circuit.
For example, the electrical energy is used by the bulb connected in the circuit. The electrical energy is provided by the battery. If the energy of the battery is used up then no current will flow in the circuit. Then the bulb will not glow in this case.
Therefore, the potential of electrons in a circuit can be increased by the action of the battery.
Models are representations that help us understand and analyze real-life situations, but they may have limitations or assumptions that make some statements not universally true.
Models are representations of real-life situations or things that help us understand and analyze them better. However, the statement, 'all of the following are true of models except,' implies that there are some characteristics that do not apply to models. Different models may have different purposes, limitations, or assumptions that may make some statements not universally true. For example, while models can provide insights and predictions, they cannot capture the full complexity of the real world or account for all variables. Models are valuable tools in various fields and disciplines, including social studies, as they help us simplify, analyze, and communicate complex phenomena and processes.
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b. at high altitudes
c. near the poles
d. in the middle of a continent
I think its a
I hope its right if it is sub to me Bearonic
B. Infrared waves
C. X rays
D. Ultraviolet rays
Answer:
D. Ultraviolet rays
Explanation:
23
296
-250
123
Answer:
the answer is 4 years
Explanation:
4 years passed do u still need this