Metals and nonmetals - Samenvattingen, Aantekeningen en Examens

Which statement about an element's average atomic mass is correct? - c. It is a weighted average, so common isotopes have a greater effect than uncommon ones. Which statement about the atom's nucleus is correct? - b. The nucleus is made of protons and neutrons and has a positive charge What is an atom's nucleus made of? - a. protons and neutrons The charge of an atom is - b. neutral An iron atom has an atomic mass of 56. Its atomic number is 26. How many neutrons does the iron atom hav...

ALEKS PLACEMENT TEST: CHEMISTRY WITH COMPLETE SOLUTIONS 100% 2023/2024 Matter Anything that has mass and takes up space; made of atoms Atoms Basic unit of matter which cannot be broken down and contain mostly empty space; contains three parts: the electron, proton, and neutron Elements A pure substance that contains only one type of atom Compound Two or more elements that are chemically bonded; includes ionic and covalent Mixture Two or more substances that are together...

what elements tend to form ionic bonds? - Answer-nonmetals with metals - Answer-metals and non labeled what elements tend to form covalent bonds? - Answer-nonmetals with nonmetals how many electrons are shared in a double bond? - Answer-4 how many valence electrons does Nitrogen have and how any bonds can it form? - Answer-5 VA, 3 bonds a ________ can be a nonbonding pair of electrons or an atom around the central atom - Answersubstituent the number of substituents is used to determine __...

Alek’s latest update with complete and verified solutions electron (symbol, charge, mass, location) e-, -1, .000549 amu or 1/1800 amu, orbiting around nucleus proton (symbol, charge, mass, location) p+, +1, 1.0 amu, nucleus Neutron (symbol, charge, mass) N0, 0, 1.0 amu ecide which element probably has a density most and least similar to the density of rubidium. options are fluorine, cesium, thallium, & indium. Metals are more similar to each other than they are to nonmetals. Likewise, nonm...

Chamberlain University BIOS 251/252 /255 /256 PREP Exam Verified Questions & Correct Answers | Expert Written Solutions | Latest update nucleic acids - ANSWER complex biomolecules nucleotides - ANSWER biological polymer made of a class nitrogenous base, five carbon sugar, and phosphate group DNA - ANSWER double helix shape stored in nucleus carries genetic code contain genes A --> T G --> C RNA - ANSWER single-stranded nucleic acid that contains the sugar ribose create p...

Well-structured CSP1501 Assignment 3 (ANSWERS) 2024 - DISTINCTION GUARANTEED. (DETAILED ANSWERS - DISTINCTION GUARANTEED!). .... QUESTION 1 [35] 1. Two high school leaners came to you confused about the physical properties of metals and nonmetals, in a table form contrast the differences between the physical properties of metals and nonmetals (10) 2. Periodic table is the organized array of all the chemical elements in order of increasing atomic number, that is the total number of protons in ...

CHEM 121 FINAL EXAM QUESTIONS AND ANSWERS 100% PASS kinetic molecular theory - Correct Answer ️️ -all matter is made of tiny particles that are constantly moving fundamental particle - Correct Answer ️️ -take a macroscopic object and divide it repeatedly. Eventually you have a particle, which, if further divided is no longer the original substance. This smallest piece of the substance is called... h2o molecule - Correct Answer ️️ -the fundamental particle of water is what? at...

CHEM 104 EXAM #2|Questions with 100% Correct Answers Periods are horizontal rows(1-7) groups are vertical columns (1A-8A) Metals are 70%, shiny, ductile, heat, electricity Non-metals are dull, brittle, good insulators metalloids are better conductors than non-metals, not as good as metals 3B-12B is transition metals 1A-8A is representative elements Alternative System 1-18 1A alkali metals 2A Alkaline Earth Metals 3A-6A no common names 7A Halogens -1 8A Noble Gases P+ ...

CHEMISTRY: The Central Science 12TH EDITION Brown, LeMay, Bursten Murphy Woodward TEST BANK ISBN-978-4 This is a Test Bank (Study Questions & Complete Answers for all chapters of the book) to help you study for your Tests. Test banks can give you the tools you need to help you study better. Table of Contents 1 Introduction: Matter and Measurement 2 Atoms, Molecules, and Ions 3 Stoichiometry: Calculations with Chemical Formulas and Equations 4 Reactions in Aqueous Solution 5 Thermochemistry 6 Ele...

Metals that form cations with different charges Transition metals Nonmetals that form anions with -1 charge. Diatomic elements Halogens Group of metals that forms actions with +1 charge Alkali Nonmetals that are not reactive Noble gases Elements with properties in between metals and nonmetals Metaloids Most are solid, have luster and conduct electricity very well Metals Group of metals that forms actions with +2 charge Alkaline earth