ient, that element could be a metal. metalloid. nonmetal.

Q: The ions of most main-group elements have the same number of __________ as the noble gas that is…

A: Modern periodic table contains groups and periods where the elements having same number of outer…

Q: 3. Oxygen has an atomic number of 8, an atomic mass of 16, and it is neutrally charged.

A:

Q: Is the statement consistent with Dalton’s atomic theory as it was originally stated? Why? Lead atoms…

A: Given, Lead atoms can be converted into gold.

Q: As we saw in the previous problem, lithium has two naturally occurring isotopes: Li-6 (natural…

A: The mass which is closest to the atomic mass of Li has to be given.

Q: Which statement about protons is false?(a) Protons have about the same mass as neutrons.(b) Protons…

A: The electrons, protons, and neutrons are the basic constituents of an atom. They help in determining…

Q: Symbol 33s2- Neutrons 36 30 8 Protons 30 25 Electrons 27 10 Net Charge 7+ 3-

A: Recall the expression of an negatively charged ion as                    aXzn-Here,number of…

Q: Bsiialat- Copy of nework.doCX 100% 3. Fill in the following chart. Don't forget to come the isotope…

A: Atomic number = total number of protons. For a neutral element, number of protons= number of…

Q: how many protons does an ion with 10 electrons and a charge of +1 contains

A:

Q: Determine the charge of each ion.(a) oxygen ion with 10 electrons(b) aluminum ion with 10…

A: ANSWER

Q: Define the term monatomic ion?

A: The term monatomic ion has to be defined.

Q: Which of the following elements would be classified as a nonmetal? a.) silicon  b.) francium c.)…

A:

Q: Show, with calculations, how the following data illustrate the law of multiple proportions:Compound…

A: The given data contains, mass % of sulfur in compound 1 = 47.5 mass % of chlorine in compound 1 =…

Q: Which of these is found in the nucleus of an atom? * -Protons -Electrons -DNA -Depends on the atom

A:

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: Approximately how many elements are listed in the periodic table? How many can be found in nature?…

A: Periodic table of elements is arrangement of elements in tabulated form. In this, the elements are…

Q: What is an ion? A cation? An anion?

A: Generally the ionic compounds consist of two parts: one part is the cation and another part is the…

Q: Consider the following atoms in which X represents the chemical symbol of the element: 19/42X,…

A: Atomic number gives the number of protons present in the nucleus or the number of electrons present…

Q: the PhET simulation, you build an ion with 4 protons, 6 neutrons, and a charge of 3+. This ion has…

A: Atomic number of an species is defined as the number of protons present in the species.

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: 1H, 2H, and 3H are examples of ________ because they have different numbers of ________.…

A:

Q: Which statement is NOT a part of Dalton's atomic theory? The atoms of each element are unique.…

A: we know dalton's atomic theory According to dalton's theory, all matter, the element or compound and…

Q: Find the atomic mass unit of silicon -28,silicon-29,silicon-30 with masses of…

A:

Q: metalloids

A: In the periodic table, major percentage are metals. In all the periodic table most element are…

Q: The formula of europium oxide is EuzOs. Based on this information, what is the formula of the…

A: Atom combines in a simple ratio to form molecules of a specific compound.      In Eu2O3 valency of…

Q: What is the most common ion of Lithium? How many neutrons does it have?

A: Most common ion of lithium = ?  Number of neutrons in this ion = ?

Q: 9) If an element has its atomic mass as 24, it can be Magnesium?lf yes? No? What information is…

A: Metal :- which are good conductor of electricity.  Non-metal :- which do not conduct electricity.…

Q: A sample of iron sulfide is found with the formula Feo.87S. What percentage of the iron ions are…

A: The given formula of the compound is Fe0.87S1.00. Iron(Fe) can be present in +2 or +3 oxidation…

Q: Answer the following questions without referring to Table2.1: (a) What are the main subatomic…

A: An atom can be considered as the smallest unit of any matter. An atom is composed of certain…

Q: d. Sulfur trioxide, SO, e. dinitrogen tetroxide, N,O, f. Chlorate, CIO," (one chlorine and three…

A: The species given are SO3, N2O4 and ClO3-.

Q: A. Answer the following questions: 1. Using your understanding of the three subatonmic particles,…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: a. What is the charge on ions formed from the alkaline earth metals?  b.What is the charge on ions…

A: The elements in the periodic table are arranged in increasing order of their atomic number. There…

Q: What is the symbol for an ion with a 1- charge, 36 electrons, and 46 neutrons?

A:

Q: 1. What is a rule for making a neutral atom which has no charge? 2. What is a rule for making a…

A:

Q: Two common oxides of iron are FeO and Fe2O3. Based on this information, tell how you would predict…

A: Iron has two common oxidation state, Fe2+ and Fe3+. To differentiate between Fe2+ and Fe3+ in…

Q: Part D Complete column 4 of the table, excluding the isotope symbol and the cells that are already…

A: The atomic number of an atom is the number of protons present in the atom. For a neutral atom, the…

Q: Which statement is TRUE? An atom of Carbon-14 contains 6 protons, 8 neutrons, 6 electrons in its…

A:

Q: As we saw in the previous problem, lithium has two naturally occurring isotopes: Li-6 (natural…

A: Percentage by which an isotope of element occurs with other isotopes of same element, is natural…

Q: An ion from a given element has 26 protons and 23 electrons. What is the charge on the ion? What is…

A: Note: As per our guidelines, we are supposed to answer only one question. Please repost the other…

Q: How many electrons are in 1 coulomb?

A: Particles that reside inside an atom are called subatomic particles. These particles are electrons,…

Q: Which of the following statement is FALSE? O Elements are organized in order of increasing atomic…

A: Some of the properties of elements in periodic table are: Elements are organized in order of…

Q: A hydrate of magnesium sulfate has a mass of 13.52 g. This sample is heated until no water remains.…

A: Given, The mass of a hydrate of magnesium sulfate = 13.52 g The mass of magnesium sulfate = 6.60 g…