Use the following key to classify each of the elements below in
its elemental form:
| A. | Discrete atoms | ... | C. | Metallic lattice |
| B. | Molecules | ... | D. | Extended, three-dimensional network |
| 1. | Magnesium | ||
| 2. | Nitrogen | ... | |
| 3. | Lithium | ||
| 4. | Potassium | ... |
Please help, I keep getting these wrong.
Atoms can be termed as discrete atoms if they are either monoatomic or diatomic molecules. Therefore, nitrogen is classified as discrete atom or molecule as it exists as N2.
A structure that consists of positively charged ions bounded with each other by their electrons present in inner shell and the electrons present in outermost shell are free to move are called metallic lattice.
Group 1 and group 2 metals are generally metallic in nature and form positively charged univalent and divalent ions.
Therefore, magnesium, lithium, and potassium will be classified as metallic lattice.
Use the following key to classify each of the elements below in its elemental form: A....
For each row in the table below, decide whether the pair of elements will form a molecular or ionic compound. If they will, then enter the chemical formula of the compound. If the elements will form more than one compound, enter the compound with the fewest total number of atoms. You may assume all chemical bonds are single bonds, not double or triple bonds. element #1 element #2 compound formed? chemical formula ionic molecular O neither lithium potassium x 6...
1. Use the following chart of boiling and melting point temperatures to answer the following questions. Notice that the melting and boiling points can be grouped into two categories: those that occur at relatively low temperatures and those that occur at relatively high temperatures. Elemental form Melting point Boiling point Name H2 He 13.81 KL 0.95 K 20.28 K 4.22 K | hydrogen helium L i(s) 453.65 K 1615 K lithium Be(s) 1560 K 2744 K beryllium B(s) 2348 K...
Which of the following pairs of elements are likely to form ionic compounds: A) helium and oxygen B) magnesium and chlorine C) chlorine and bromine D) potassium and sulfur E) sodium and potassium F) nitrogen and oxygen I believe the answer is d and f Would appreciate a verification and as to why I might be wrong or right instead of a link saying what is an ionic compound thank you
I keep getting the Lithium Ion ones wrong, someone
please help.
Consider the following EOY cash flows for two mutually exclusive alternatives one must be chosen The MARR is 4% per year Lead Acid $9,000 $2,750 Lithium lon Capital investment Annual expenses Useful life Market value at end of useful life $15,000 $2,200 12 years 18 years 50 $3,000 Click the icon to view the interest and annuity table for discrete compounding when ,24% per year. (a) Determine which alternative...
1.) Describe the goals of a Gel Filtration Chromotography
Experiment???
2.) Explain each key theoretical principle of a Gel Filtration
Chromotography, and how they help acheive the goal???.
4.) Explain the key equations used in the Gel Filtration
Chromotography experiment and the terms involved in the
equation????
HI im trying to prepare for a lab/report and i have some
questions i could use help with please :) over all having trouble
seeing how everything ties together etc :) thank you...
The smallest chemical units of matter are atoms b) molecules c) protons d) neutrons e) electrons . Which of the following would have the largest size? a) an atom b) a molecule c) a proton d) a neutron e) an electron 3. Isotopes of an element differ in the number of a) protons in the nucleus b) electrons in the nucleus © neutrons in the nucleus d) electron clouds e) energy levels they contain 4. VO The atomic number represents...
Please answer the questions too. Thanks.
4. What is used for naming covalent compounds that is not used for lonic compound naes Procedures: 1. Complete Table A "Electron Dot Structures" using the given examples 2. Complete Table B "Physical Properties of lonic Compounds using text book as the reference. 3. Complete Table C "Formulas of lonic Compounds." Determine the oxidation mumber or valence of each ion, then determine the chemical formula so that the compounds have a balance, zero net...
please complete the questions has not answering with
clarification of the answer to any page
Name Lab Section _Date The Mole Concept and Atomic Weights The purpose of this activity is to better understand the concepts of relative atomic mass, counting by weighing and the mole. Percent composition and average atomic mass are included. Part I. Relative Atomic Masses and the Mole - Early Method When John Dalton proposed his atomic theory, he stated that the atoms of each element...
Using the CNA Insurance company Knowledge Management scenario (below), carry out the following knowledge management assignment Questions after reading the scenario/essay: =============================================================================================================== For Gordon Larson, telling stories is all in a day's work at his job as chief knowledge officer at CNA, and that's just fine with executives at the Chicago-based insurance giant. Larson owes his job to a shift in corporate direction. Three years ago, under the direction of a new chairman, CNA set off on a new mission....
Case Study for Care Plan Assignment: fill each attached column with its appropriate answer, use the below scenario. A retired 69-year-old man "Mr. Casey" with a 5-year history of type 2 diabetes. Although he was diagnosed 5 years ago he had symptoms indicating hyperglycemia for 2 years before diagnosis. His fasting blood glucose values of 118–127 mg/dl, which was explained to him as “borderline diabetes.” He also states he has had past episodes of nocturia with large pasta meals and...