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Concept explainers
Interpretation:
The electronegativity values of metals in comparison with nonmetals has to be chosen from the given options.
Concept Introduction:
Close relationship between ionic and covalent bonding models becomes apparent if the bond polarity and electronegativity is considered. Electronegativity is the measure of relative attractive for the shared pair of electrons in a bond. Higher the electronegative value for an atom, the more it attracts the shared pair of electrons towards itself.
In Periodic table, when moving from left to right in a period, the electronegativity value increases. While moving from top to bottom within group, the electronegativity value decreases. Nonmetals have higher electronegativity values than metals. Metals gives electrons and nonmetals accepts electrons.
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Chapter 5 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- One of the results of a fat being saturated is that the molecules interact stronger. This means that saturated fats are usually solid at room temperature while unsaturated fats are typically liquids. The interactions between triglycerides falls under which of the following types. Select one: a. Covalent Bonds b. van der Walls bonds c. Hydrogen Bonds d. Ionic Bondsarrow_forwardThe content of calcium in Al-Jabal Al-Akhdar bottled drinking water is 7.9 mg per liter. How many moles of calcium ions are in 330 mL of this water? O a. 0.065 mol O b. 6.5x10-5 mol O c. 3.9 x10-19 mol O d. 2.0x10-4 mol O e. 0.20 molarrow_forwarda A metal that is in the liquid phase at room temperature. SiO2 b A compound that forms a network solid composed of covalently bonded atoms. CO2 c A gas that will dissolve in water due to dipole-Induced dipole forces. KNO3 d The solid-liquid equilibrium line on the phase diagram of this compound has a negative slope. Poly-ethylene ( a plastic) e A solid substance at STP, in which the particles are held together by Induced dipole-induced dipole forces. Graphite f A substance that will dissolve in water due to hydrogen bonding. H2O g A covalent network solid that has good electrical conductivity. NH3 h An amorphous solid. Hgarrow_forward
- Choose the best answer for following question. An atom that has two electrons in the valence shell, such asmagnesium, would most likelya. share to acquire a completed outer shell.b. lose these two electrons and become a negatively charged ion.c. lose these two electrons and become a positively charged ion.d. bind with carbon by way of hydrogen bonds.e. bind with another magnesium atom to satisfy its energy needs.arrow_forwardA covalent bond forms whena. electrons are present in a valence shell.b. a valence electron is removed from one atom and added to another.c. a pair of valence electrons is shared between two atoms.d. the electronegativity of one atom is much greater than that ofanother atom.arrow_forwardTwo students plan and carry out an investigation to determine if ionic or covalent bonds have stronger intermolecular forces. They collect the following data. C6H1206 NaCI color white white texture,grain size rough, small pieces rough, very small grains solubility in water soluble (able to dissolve) soluble (able to dissolve) melting point melts easily does not melt a. Identify the type of intramolecular bonds that are involved. b. Which substance will have the stronger intermolecular forces? c. Which properties allow you to predict the strength of the intermolecular forces? Format B I U ... >arrow_forward
- Sodium bicarbonate has a(n) ___________________pH value compared to hydrochloric acid. A. Higher B. Lower C. Equal D. Cannot be determinedarrow_forwardDefine the following terms: a. dipole b. hydrogen bond c. electrostatic interaction d. covalent bond e. hydrationarrow_forwardAlanine has pKa values of 2.4 and 9.9. Its isoelectric point, pI, is equal to____. A. 6.15 B. 23.76 C. 7.50 D. 4.13arrow_forward
- 3. If we want to find out which elements are safe for humans to consume when combined a rait an which of the following might be the best way to predict the elements that are safestte ca A. Determine how much sodium and similar elements are normally found in the human body B. Determine the properties of sodium and similar elements using the periodic table. C. Use a conductivity meter to find out if sodium and similar elements conduct electricity. D. Research the abundance of sodium and similar elements in outer space to compare to Earth. E. Look up the melting points of sodium and similar elemen compare temperatures. 4. Explain why you chose the answer you did to question #3.arrow_forwardA substance formed of crystals of equal numbers of cations and anions held together by ionic bonds is called a(n) ________. a. noble gas b. salt c. electrolyte d. dipolearrow_forwardWhich of the following levels in the shell model of an atom can hold up to two electrons? A. The second shell B. The first shell C. The third shellarrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
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