Periodic Table
... go down the group. Atomic number gets larger as you go across the row from _________to _________ (period) and down the _______. Some of the elements are named after ________, _______, countries, and their Latin or Greek names. Hydrogen and Helium are separate from the other elements in their group. ...
... go down the group. Atomic number gets larger as you go across the row from _________to _________ (period) and down the _______. Some of the elements are named after ________, _______, countries, and their Latin or Greek names. Hydrogen and Helium are separate from the other elements in their group. ...
Chemistry Notes with Blanks
... Table salt (NaCl) is a compound composed of the _________ sodium and chlorine. A _________ bond holds the two hydrogen atoms together. A molecule is a group of atoms held together by covalent bonds. It has no_________charge. _________ electrons in the 1st shell, _________in the 2nd, and ____ ...
... Table salt (NaCl) is a compound composed of the _________ sodium and chlorine. A _________ bond holds the two hydrogen atoms together. A molecule is a group of atoms held together by covalent bonds. It has no_________charge. _________ electrons in the 1st shell, _________in the 2nd, and ____ ...
effective nuclear charge
... atom or ion measure of attraction of atom for the added e energy is released when e- added the more negative the EA, the greater the attraction of the atom for an e ex: Cl(g) + e- Cl-(g) ΔE= -349kJ/mol ...
... atom or ion measure of attraction of atom for the added e energy is released when e- added the more negative the EA, the greater the attraction of the atom for an e ex: Cl(g) + e- Cl-(g) ΔE= -349kJ/mol ...
Chem 1151
... concentration of As(III) in an unknown sample. What is the molarity of As(III) if 33.45 mL of 0.125M KBrO3 is needed to titrate 50.0 mL of the As(III) solution? The balanced chemical equation is H3AsO3(aq) + BrO3-(aq) Br -(aq) + 3H3AsO4(aq) ...
... concentration of As(III) in an unknown sample. What is the molarity of As(III) if 33.45 mL of 0.125M KBrO3 is needed to titrate 50.0 mL of the As(III) solution? The balanced chemical equation is H3AsO3(aq) + BrO3-(aq) Br -(aq) + 3H3AsO4(aq) ...
Homework – Atoms Instructions
... that is used by an atom. E.g. An atom of calcium has 20 electrons in total. 2 of these are found on the first shell, 8 of these are found on the second shell, 8 of these are found on the third shell, and the remaining 2 are found on the fourth shell. The electron configuration for calcium is: 2.8.8. ...
... that is used by an atom. E.g. An atom of calcium has 20 electrons in total. 2 of these are found on the first shell, 8 of these are found on the second shell, 8 of these are found on the third shell, and the remaining 2 are found on the fourth shell. The electron configuration for calcium is: 2.8.8. ...
1305- practise exam 2
... 21a. Element X has natural isotopes; X-63 (62.940amu) and X-65 (64.928amu). Calculate the atomic mass of element X given the abundance of X-63 is 69.17% b. Which element corresponds to each of the following electron configuration? i. 1S2 2S2 2P5 ii. 1S2 2S2 2P6 3S2 3P6 iii 1S2 2S2 2P6 3S2 3P6 4S2 3d ...
... 21a. Element X has natural isotopes; X-63 (62.940amu) and X-65 (64.928amu). Calculate the atomic mass of element X given the abundance of X-63 is 69.17% b. Which element corresponds to each of the following electron configuration? i. 1S2 2S2 2P5 ii. 1S2 2S2 2P6 3S2 3P6 iii 1S2 2S2 2P6 3S2 3P6 4S2 3d ...
GLOSSARY OF SCIENTIFIC TERMS IN THE MYSTERY OF MATTER
... A group of two or more atoms linked together by sharing electrons in a chemical bond. A heavy, neutral particle in an atom’s nucleus that accounts for almost all of each atom’s mass, in addition to protons. Any of the six gases helium, neon, argon, krypton, xenon, and radon. Because the outermost el ...
... A group of two or more atoms linked together by sharing electrons in a chemical bond. A heavy, neutral particle in an atom’s nucleus that accounts for almost all of each atom’s mass, in addition to protons. Any of the six gases helium, neon, argon, krypton, xenon, and radon. Because the outermost el ...
Chapter 10 Power Point - Biloxi Public Schools
... atomic masses & discovered a repeating pattern of properties or characteristics. ***There were some gaps in masses so he placed question marks in their spots. Later, elements were discovered to fill in these gaps. His predictions about elements, their masses & properties proved to be true.*** Henry ...
... atomic masses & discovered a repeating pattern of properties or characteristics. ***There were some gaps in masses so he placed question marks in their spots. Later, elements were discovered to fill in these gaps. His predictions about elements, their masses & properties proved to be true.*** Henry ...
PS.Ch6.Test.95
... 2 Atoms and Elements P R A C T I C E 1. Certain properties are characteristic of metals. Which property means that you can pound the ...
... 2 Atoms and Elements P R A C T I C E 1. Certain properties are characteristic of metals. Which property means that you can pound the ...
Word - chemmybear.com
... 2 Atoms and Elements P R A C T I C E 1. Certain properties are characteristic of metals. Which property means that you can pound the ...
... 2 Atoms and Elements P R A C T I C E 1. Certain properties are characteristic of metals. Which property means that you can pound the ...
Name - Aurora City Schools
... K__ drawing of an atom that only shows the symbol of the atom and the valence electrons ...
... K__ drawing of an atom that only shows the symbol of the atom and the valence electrons ...
Name - Aurora City Schools
... K__ drawing of an atom that only shows the symbol of the atom and the valence electrons ...
... K__ drawing of an atom that only shows the symbol of the atom and the valence electrons ...
The Periodic Table
... Atomic radius is the “size” of an atom. Atomic radius is half the distance between the nuclei of two atoms. Atoms with a large atomic radius will be easy to remove an electron from; these are usually the metals. Atoms with a small radius are harder to remove an electron from; these are usually the n ...
... Atomic radius is the “size” of an atom. Atomic radius is half the distance between the nuclei of two atoms. Atoms with a large atomic radius will be easy to remove an electron from; these are usually the metals. Atoms with a small radius are harder to remove an electron from; these are usually the n ...
chemistry - cloudfront.net
... Group 2: alkaline earth metals; also form bases with water; do not dissolve well, reactive (loses two valence electrons) Group 17: halogens, most highly reactive of nonmetals Group 18: noble gases, unreactive Write the complete electron structure for a neutral sodium atom. According to its electro ...
... Group 2: alkaline earth metals; also form bases with water; do not dissolve well, reactive (loses two valence electrons) Group 17: halogens, most highly reactive of nonmetals Group 18: noble gases, unreactive Write the complete electron structure for a neutral sodium atom. According to its electro ...
CHEM 1411 NAME: PRACTICE EXAM #3 (Chapters 6
... In which of the series of elements listed below would the elements have most nearly the same atomic radius? A) Sc, Ti, V, Cr B) Na, K, Rb, Cs C) B, Si, As, Te D) F, Cl, Br, I E) Na, Mg, Al, Si ...
... In which of the series of elements listed below would the elements have most nearly the same atomic radius? A) Sc, Ti, V, Cr B) Na, K, Rb, Cs C) B, Si, As, Te D) F, Cl, Br, I E) Na, Mg, Al, Si ...
Periodic Table
... •Representing a system of classifying, or logically grouping, all of the known elements –Brought order to unrelated facts –Helped scientist predict the existence of unknown elements ...
... •Representing a system of classifying, or logically grouping, all of the known elements –Brought order to unrelated facts –Helped scientist predict the existence of unknown elements ...
Matter Unit
... mass which is unique to that element. Atoms cannot be subdivided, created, or destroyed in ordinary chemical reactions. However, these changes CAN occur in nuclear reactions! All matter is composed of atoms Atoms of any one element differ in properties from atoms of another element ...
... mass which is unique to that element. Atoms cannot be subdivided, created, or destroyed in ordinary chemical reactions. However, these changes CAN occur in nuclear reactions! All matter is composed of atoms Atoms of any one element differ in properties from atoms of another element ...
SLE133 – “Chemistry in Our World” Summary Notes Week 1
... A non uniform mixture having different compositions at different regions ...
... A non uniform mixture having different compositions at different regions ...
The Periodic Table of Elements
... – When atoms have partially full outermost energy levels, they may undergo ionization (the gaining or losing of valence electrons). – As atoms gain or lose electrons they no longer have the same # of electrons as protons. The charges no longer cancel out and you are left with a charged atom or ion. ...
... – When atoms have partially full outermost energy levels, they may undergo ionization (the gaining or losing of valence electrons). – As atoms gain or lose electrons they no longer have the same # of electrons as protons. The charges no longer cancel out and you are left with a charged atom or ion. ...
CHAPTER 1: INTRODUCTION TO CHEMISTRY
... It is organized by the properties of the atoms, number of subatomic particles of the atom, and size of the atom. ...
... It is organized by the properties of the atoms, number of subatomic particles of the atom, and size of the atom. ...
Chapter 11 and 12-2 Review/Study Guide for Test
... 5. What happens to the electrons in the atom when it becomes an ion? They are gained or lost to another atom. 6. What is an isotope? When atoms of the same element have different numbers of neutrons from each other. 7. What determines the identity of an element? The number of protons in the nucleus ...
... 5. What happens to the electrons in the atom when it becomes an ion? They are gained or lost to another atom. 6. What is an isotope? When atoms of the same element have different numbers of neutrons from each other. 7. What determines the identity of an element? The number of protons in the nucleus ...
ChLM Final Review Name: Period: Base Knowledge 1. Classify the
... 1. Classify the following as observations or inferences a) The liquid is green because food coloring was added. b) The beaker has green liquid in it. c) The beaker can hold up to 250 mL. d) The beaker will be the best tool for this lab. 2. Measure the following, circle your estimated digit and inclu ...
... 1. Classify the following as observations or inferences a) The liquid is green because food coloring was added. b) The beaker has green liquid in it. c) The beaker can hold up to 250 mL. d) The beaker will be the best tool for this lab. 2. Measure the following, circle your estimated digit and inclu ...
