Concept explainers
a.
To determine:
The name and symbol of the ion that contains
Introduction:
Electrons, protons, and neutrons are the sub atomic particles. The number of protons and electrons present in an element are equal and is termed as the
b.
To determine:
The name and symbol of the ion that contains
Introduction:
Electrons, protons, and neutrons are the sub atomic particles. The number of protons and electrons present in an element are equal and is termed as the atomic number
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GENERAL ORGANIC+BIOL...-MASTERINGCHEM.
- The model consists of balls and sticks. a. How many holes should be in the ball you select for the N atom? ___________ b. How many holes should be in the ball you select for the H atoms? ____________ c. How many holes should be in the ball you select for the Cl atom? ____________ The electrons in the molecule are paired, and each stick represents a valence electron pair. d. How many sticks do you need? ____________arrow_forward1. Hydrogen is a Group I element and each hydrogen will contribute I valence electron. Carbon is a Group (Roman numeral) element and each carbon will contribute ___ (number) electrons. Every oxygen atom in a compound will contribute valence electrons. Chloromethane has the molecular formula . Its skeleton is and the number of valence electrons may be determined as follows. There are three hydrogen atoms, each of which contributes 1 valence electron; the single carbon contributes 4 electrons; and the single chlorine atom contributes 7 electrons, making a total of 14 . A convenient tabular form of this calculation isarrow_forwardWhat are bus? How are ions formed from atoms? Do isolated atoms form ions spontaneously? To what do the termscationandanionrefer? In terms of subatomic particles, how is an ion related to the atom from which it is formed? Does the nucleus of an atom change when the atom is converted into an ion? How can the periodic table be used to predict what ion an element’s atoms will form?arrow_forward
- How many valence electrons are needed to complete the outer valence shell of sulfur? a. 1 b. 2 c. 3 d. 4arrow_forwardHow many electrons are present in each of the following ions? a.Ba2+ c.Mn2+ e.Cs+ b.P3 d.Mg2+ f.Pb2+arrow_forwardWhich of the following is the chemical symbol for the species that has 16 protons, 17 neutrons, and 18 electrons? a. 1633S b. 1733Cl c. 1735Cl d. 1633S2arrow_forward
- For each of the following processes that show the format ion of ions, complete the process by indicating the number of electrons that must be gained or lost to form the ion. Indicate the total number of electrons in the ion, and in the atom from which it was made. AlAl3+d.FF SS2e.ZnZn2+ CuCu+f.PP3arrow_forwardWrite a symbol for each of the following ions: a.A selenium atom that has gained two electrons b.A rubidium atom that has lost one electron c.An aluminum atom that has lost one electronsarrow_forward24 A molecule is made from four atoms. The first atom (A) has four valence electrons, the second atom (B) has 6 valence electron, and the other two atoms (C) each have 7 valence electrons. What is the shape of the molecule ABC2?arrow_forward
- A 6-year-old child has been prescribed Gaviscon suspension 10 mL four times a day. Gaviscon suspension contains 3.1 mmol Na+/5 mL. The recommended daily allowance of salt for a 6-year-old child is 3 g (equivalent to 1.2 g sodium) per day. The atomic mass of sodium is 23. What percentage of this child’s recommended daily salt allowance is contained in a total daily dose of Gaviscon suspension? Give your answer to the nearest whole number.arrow_forwardThe following paragraph is a description of the fictional element melbournium (Mb). Mb in its elemental form, is a solid at room temperature. There are 38 protons in its nucleus. The sample of Mb in my laboratory has 40 neutrons. Its electronegativity is 0.5. I have been told that there is only one other isotope of Mb with 38 neutrons (which is 50% abundant). All the information you require about Mb to answer the questions below is supplied in the statement above (it is a fictional element, so it is not on The Periodic Table). Data for F (fluorine), mentioned below, can be sourced from the Periodic Table. I. Determine the atomic number of Mb. II. Determine the mass number of the isotope that I have in my lab. III. Determine how many electrons are in Mb. IV Write the full electronic configuration of Mb using the correct rules for the energy levels. V. Will Mb gain or lose electrons (and how many) to form an octet? Why? VI.…arrow_forwardELEMENTS: Ca, K, Al, Mg, S, O, P, F Now put 8 different possible combinations together. Write the formulas below. Make sure total charge = 0 Examples that work: (do NOT copy these) CaS CaF2 Non-example: CaKParrow_forward
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