No, Methane (CH4) is not a polyatomic ion. It doesn't have a charge, therefore it can't be an ion. It's considered a hydrocarbon.
This just means it has a charge of 1+. The Boron ion can only have a charge of 1+.
Cation = negative ion
80 is an integer. If you are asking for the Celsius equivalent of 80°F, then the answer is 26.555...°C
O2- is the symbol for the oxide ion, which is an oxygen atom that has gained two electrons. The oxide ion has a charge of -2.
The most stable ion of fluorine (F) has a charge of -1, known as fluoride ion. The most stable ion of bromine (Br) has a charge of -1 as well, known as bromide ion.
The symbol for a fluorine ion is F^-. This indicates that the ion has gained an extra electron, giving it a negative charge.
Fluorine forms the fluoride ion, which has a charge of -1.
Fluoride is a monovalent anion ===> F-
Sodium ion (Na+) has a positive charge, while fluoride ion (F-) has a negative charge. Sodium ion is larger in size compared to fluoride ion due to fewer protons and electrons in its structure. Sodium ion is essential for nerve function and muscle contraction, while fluoride ion is commonly found in toothpaste and water for dental health.
F-. To figure this out, the element is determined by the number of protons (9=F), and the charge by the difference between the protons and electrons. There's one more electron than proton here so the charge is 1-.
Fluorine commonly forms the fluoride ion (F-). This ion has a negative charge and is stable due to fluorine's high electronegativity.
Fluorine typically forms an ion with a negative charge, as it tends to gain one electron to achieve a full valence shell. This results in the formation of the fluoride anion (F-).
Remember.. I f there are more electrons than protons in an ion the charge will be negative. Here there is a -4 charge because the electrons are higher than the protons, if it were the opposite the charge would be +4.
A fluorine ion with atomic number 9 and 10 electrons has a charge of -1 because it has one extra electron as compared to the number of protons (10-9 = 1). Its symbol is F-.
Br-, like the other halogens F-, Cl-, Br-, I-. They would obtain one electron to have noble gas electron configuration. Therefore, one negative charge.
This is the electrical charge of the ion.