Choose 1 element under Group 2, 4 & 6 and draw their Lewis structure. And predict how many electrons are needed by each element to become stable. Write your answer using the following table:   Group Element Lewis structure Number of electrons needed to be stable

Q: 7. Our current model for how elements bond to form compounds uses the idea that they bond to reach 8…

A: According to this rule, elements have tendency to fill 8 electrons in their respective valence…

Q: Bonds between which of the following two elements would involve a complete transfer of electrons? O…

A: Ionic bonds are formed between atoms having a large electronegative difference. These bonds involve…

Q: MCQ 15: in Group IV, the highest melting point is of A. Carbon(Diamond) B. Tin (Sn) C. Lead (Pb) D.…

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Q: Draw the Lewis structure for the tribromide  Br−3  ion.

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Q: Write an equation that shows the formation of a manganese(II) ion from a neutral manganese atom

A: Oxidation reaction is a reaction wherein an atom looses its valence electron to form a positive ion…

Q: Give the Name, Chemical Formula, and Classification (acid, base , salt or oxide) of the compounds…

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Q: a) State and describe a specific potentially harmful chemical substance from the topic. b) Explain…

A: Sufur dioxide (SO2 ) are produced when Sulfur containing fossil fuel is burnt. It is a gas that is…

Q: Which type of chemical formula/model provides the most information about a given substance? (a) All…

A: In case of Lewis  structure we get the complete information about the given substance , Lewis…

Q: the group of gases that have 8 valence electrons are know as (a) Stable gases (b) nobal gases (c)…

A: Since the gases which have 8 electrons that is complete octet electrons are known as noble gases…

Q: Which one of the following statements is false? Group of answer choices   -Water is the most…

A: In green house gases about 60% of green house effect depends upon the water vapour because water is…

Q: the existence of life beyond the earth, we have to search all these seven elements i. e. carbon,…

A: 8.As phosphorus and arsenic have approximate similar camical properties, so that arsenic substitute…

Q: 4. Examine the structures below. Label each structure as primary (1), secondary (2"), or tertiary…

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Q: Draw the Lewis dot structures for sodium, phosphorus, sulfur, and chlorine.

A: Given elements: sodium, phosphorus, sulfur, and chlorine.

Q: What is the chemical formula of the ionic compound that results from the the combination of calcium…

A: What product form on combination of Ca(s) & P4(s) ?

Q: Two dots between two elements represents...   Question 2 options:   A bonding pair of electrons…

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Q: Identify and analyze the way fossil fuel combustion has changed the composition of Earth's…

A: The burning of fossil fuels refers to the burning of oil, natural gas, and coal to generate energy.…

Q: 9.2. An amino acid contains a group, a hydrogen atom group, an and another atom or molecule which…

A: 9.2. An amino acid contains a carboxylic acid group, an amino group, a hydrogen atom group, and…

Q: <p>Explain why the diatomic nitrogen atom is unusable by most plants. Where do plants get…

A: Photosynthesis does not fix nitrogen. Atmospheric nitrogen is unusable to plants.  It is consumed by…

Q: There are three sets of sketches below, showing the same pure molecular compound (carbon monoxide,…

A: States of matter

Q: a. Write the electron configuration for Si. How many valence electrons does silicon contain? [Select…

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Q: 10:00 PM Tue May 24 ← Lewis Dot Structures copy.pdf Lewis Dot Structures Name Draw the Lewis dot…

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Q: What is a greenhouse gas? Give the chemical formulas of two compounds that function as greenhouse…

A: Greenhouse gases are the gases that cause greenhouse effect by absorbing infrared radiation which…

Q: What is the formula for these? 1. Potassium phosphide 2. Cadmium acetate 3. Calcium nitrite 4.…

A: Answer 1. Potassium phosphide is also called Tri-potassium phosphide. The formula for potassium…

Q: 100% Normal text Open Sans BIUA 12 3 5. What are the properties of water that make it important for…

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Q: Write the complete electron configuration for Cl- ion. What trend in electronegativity occurs as you…

A: The atomic number of Chlorine atom=17 The number of electrons in the chlorine atom =17 The number of…

Q: Which of the elements below exhibit the "incrt-pair effect"? A sulphur B lead C sodium D magnesium…

A: Reluctance of ns electron to participate in chemical bonding due to high nuclear charge is called…

Q: Classify V ubstance shown in the sketch below. You can click the other tabs in the sketch to get a…

A: It is not a solution, and solutions are a homogenous mixture It is not a pure substance, as the pure…

Q: The electron configuration of Oxygen, Carbon, Nitrogen, Sodium, and Chlorine?   and figure out…

A: Since the atomic number of oxygen is 8 Hence its electronic configuration is O = 1s² 2s² 2p⁴ Since…

Q: Compare/Contrast elemental and ionic lead in chemical & physical properties and their effect on…

A: Lead is a dense chemical element. It is silvery bluish in color. Its color changes to dull grey when…

Q: Formula of calcium nitride is “Ca3N2".

A: Any atom or molecule is electrically neutral. Only ions carry the charge. The net charge on an ion =…

Q: E is a made up element and contains 6 valence electrons Y is a made up element and contains 7…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: What is the greenhouse effect? How does the excess  CO2 gas in the atmosphere cause the greenhouse…

A: The warming of the earth's surface due to the accumulation of some gases in it is known as…

Q: Calcium atoms have two electrons in their outer shell. What would be the charge of a calcium ion…

A: In aquous form, the two electrons in the outer shell of the calcium atom will loss and form Ca2+…

Q: Write the chemical formula for this molecule: key carbon hydrogen nitrogen sulfur oxygen chlorine…

A: Given green  - chlorine black - carbon white - hydrogen

Q: Use ∆EN to determine the bond type (covalent, polar covalent, or ionic) in each of the following…

A: Given compounds are -  Nitric oxide, NO  Ferrous sulfide , FeS  Potassium chloride, KCl  Sulfur…

Q: Conductivity of Solutions Virtual Lab Background:     Some properties may be used to predict the…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: Power Index = 178% Heat of explosion (Qv) = 6666kJ/kg Gaseous products detected: CO2, H2O, and N2…

A: Given : Power Index = 178% Heat of explosion (Qv) = 6666kJ/kg

Q: There are three sets of sketches below, showing the same pure molecular compound (carbon monoxide,…

A: For carbon monoxide(CO), the melting point is - 205. oC and the boiling point is - 192. oC.  Hence…

Q: In which of the following molecules do the electrons have the most chemical energy, especially those…

A: In the process of photosynthesis, plants convert light energy into chemical energy. The reaction of…

Q: Draw the Lewis structure for Carbon Dioxide

A: Valence electron of Carbon = 4 Valence electron no of Oxygen = 6 Total valence electron CO2 = 4 + (2…

Q: Hydrogen 8+ 8n Oxygen Hydrogen The illustrations above show molecular structures of multiple water…

A: The structure of water molecule given is  Hence in the above structure we can see that there is…

Q: The greenhouse effect is caused by… Group of answer choices too much sunshine reaching Earth…

A: Greenhouse effect is the trapping of heat in the Earth's surface by green house gases.

Q: Building ionic compounds from seawater can you help me move ions to make neutral compounds one type…

A: A set of anions and cations using which neutral compounds are to be made.

Q: .Give the step-by-step separation techniques you could use for ammonium chloride, calcium carbonate,…

A: A mixture contains ammonium chloride, calcium carbonate, sand, and water need to seperated.…

Q: There are three sets of sketches below, showing the same pure molecular compound (carbon monoxide,…

A: A question based on matter that is to be accomplished.

Q: Name acid acid or base if the formula is given, or write the formula of the acid or base if the name…

A: We are having the names or formula for acid or base we have to write the for formula for name and…

Q: What trend in electronegativity occurs as you go down a group on the periodic table? Explain why…

A: Electronegativity is the ability of an element to gain electrons. Across the period, the value of…

Q: Oxygen Atom (0) Magnesium Atom (Mg) ::

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Q: Draw the Lewis structure of the following polyatomic ions and covalent compounds. Show the step by…

A: Please find your solution below : Lewis structures are the structures that show bonding between the…

Actinides

The elements in which the extra electron tends to enter the 5f-orbitals of (n–2)th main shell are considered 5f-block elements. They are also named actinides. Actinides include 15 elements, from atomic number 89 to 103.