How many electrons are in the n = 3 shell of a magnesium ion (Mg?")?

Q: If you have an atom of bismuth that has been ionized (changed the number of electrons) and become…

A: An atom is the basic and fundamental unit of matter. An atom consists of electron and the nucleus in…

Q: An atom of calcium is represented by 12C.. How many neutrons are in the nucleus of this atom?…

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Q: For each ionic depiction, give the name of the parent atom, its mass number, and its group and…

A: Atomic number of an atom is equal to number of protons present in it. For a neutral atom, the number…

Q: 1) Give the formulas of the following compounds: a) potassium dihydrogen phosphate b) sodium cyanide…

A: We'll answer the first question and up to 3 sub-parts since the exact one wasn't specified. Please…

Q: Which monatomic ions would you expect radium  (Z = 88)  and selenium  (Z = 34)  to form?

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Q: Metal ions are named by naming the element and adding the word ion. Metal ions that have variable…

A: Usually transition metal shows the variable oxidation States. Charges on the metals are written on…

Q: On another planet, the isotopes of titanium have the given natural abundances. Isotope Abundance…

A: The average atomic mass of three isotopes can be calculated using the following expression:

Q: 4. What is the atomic symbol of an ion with (a) 16 protons, 18 neutrons, and 18 electrons? (b) 16…

A: If ions contain more number of electron compare to number of protons then ion has negative charge…

Q: Name the following Compounds: Write a Formula for the following type in lower case please)…

A: We have give names. As per rule, only 3 subparts can be attempted.

Q: 77. Determine the number of protons and electrons in each ion. (a) Na+ (b) Ва?+ (c) O²- (d) Co³+

A: An atom consists of the nucleus at its center, and electrons revolve around the nucleus. The nucleus…

Q: Sara is working on a chemistry problem with a partner. They are trying to name the compound…

A: Each compound has its particular name by following some rules .

Q: A new transition metal, margium, has been discovered, which is represented by the chemical symbol…

A: The name of inorganic salts is written according to some general nomenclature rules.

Q: 3+ Complete the table below. For example, in the first row decide whether Sc is a cation or anion.…

A: Cations are ions that are positively charged and  anions are ions that are negatively charged.If an…

Q: I couldn't put both parts of the question in one picture, so please answer both parts of the…

A: Weight of a formula unit is called formula unit mass.  Number of formula units present in 1mol of…

Q: 4. Lead 210 is a radioactive isotope of lead. It is a beta emitter. In the radioactive decay process…

A: We have to assume that each radioactive species has 82 electrons. No. Of electrons = No. Of protons…

Q: Iron exists in nature as a mixture of predominantly three isotopes: 5426Fe (53.94 amu), 562.Fe…

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Q: the correct formula between x and oxygen has a chemical formula of X2O. which element would x most…

A: The objective of the question is to identify the element 'X' in the chemical formula X2O.

Q: Iron exists in nature as a mixture of predominantly three isotopes: ⁵⁴₂₆Fe (53.94 amu), ⁵⁶₂₆Fe…

A: We have to calculate the percentage of rarest of three isotopes.

Q: What is the formula of chromium(VI) oxide?   What is the formula of carbon tetraiodide?

A: We have to predict the formula for the given names

Q: What monatomic ions would you expect radium (Z = 88) and selenium (Z = 34) to form?

A: Monoatomic ions: These are the ions that consist of atoms of only one kind of element. The…

Q: A manufacturer begins with 15.00 kg15.00 kg of cinnabar and produces 12.93 kg12.93 kg of elemental…

A: Since you have posted multiple questions, we are entitled to answer the first clear question only.…

Q: The species, 4521X2- is:   an anion, with 21, protons, 24 neutrons, and 24 electrons   an anion,…

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Q: Lithium has two naturally occurring isotopes: Li-6 (natural abundance 7.5%) and Li-7 (natural…

A: Given information,    Li-6 (natural abundance 7.5%) and Li-7 (natural abundance 92.5%).

Q: Give the symbol, including the correct charge

A: The charge on an ion or species is determined as per the octet rule. Every species wants to have…

Q: Fill in the gaps in the following table:

A: Atomic Number = Number of Protons  Mass Number = Number of Protons + Number of Neutrons Symbol -…

Q: How many protons are in an ion with 1010 electrons and a −1 charge? number of protons:     How many…

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Q: Consider an ion Cr2+  that has a mass number of 54.   How many protons? How many electrons? How…

A: Given. Atomic mass of Cr = 54 ion = Cr2+

Q: How many neutrons and electrons does 198Hg2+ have?

A: Since the atomic number of neutral Hg atom is 80 = number of electrons in Hg And in the above given…

Q: Give the formulas of the following compounds: potassium permanganate strontium cyanide copper (I)…

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Q: There are protons, neutrons, and electrons in 147₁ Hs+5

A: Atom is composed of three subatomic particles, which are electrons, protons and neutrons.  Protons :…

Q: The following paragraph is a description of the fictional element melbournium (Mb).   Mb in its…

A: Answer:Electronegativity differenceBond typeless than 0.4Pure covalentBetween 0.4 and 1.7Polar…