Properties of Atoms and the Periodic Table
... increasing numbers of protons and electrons. One proton and one electron are added to each element as you go across the periodic table from left to right. ...
... increasing numbers of protons and electrons. One proton and one electron are added to each element as you go across the periodic table from left to right. ...
Chemistry for Bio 11
... Elements combine in chemical reactions to form compounds • Molecules- 2 or more atoms combined in a specific way • Compounds- different elements in a molecule, in exact, whole-number ratios, joined by a chemical bond • 2 major means of intramolecular chemical bonding: Covalent (incl. polar and nonp ...
... Elements combine in chemical reactions to form compounds • Molecules- 2 or more atoms combined in a specific way • Compounds- different elements in a molecule, in exact, whole-number ratios, joined by a chemical bond • 2 major means of intramolecular chemical bonding: Covalent (incl. polar and nonp ...
Atomic structure and periodic table review questions What is an
... 1. What is an atom mostly made up of? 2. The two sub-atomic particles found in the nucleus are? 3. Another name for the two sub-atomic particles found in the nucleus is ____________. 4. What are the sub-atomic particles found outside of the nucleus? 5. Which particle has a positive charge? 6. Which ...
... 1. What is an atom mostly made up of? 2. The two sub-atomic particles found in the nucleus are? 3. Another name for the two sub-atomic particles found in the nucleus is ____________. 4. What are the sub-atomic particles found outside of the nucleus? 5. Which particle has a positive charge? 6. Which ...
document
... arrangement of electrons in atom’s shells and subshells. Rules to predict electron configuration: 1. Electrons occupy the lowest-energy orbitals available, beginning with 1s and continuing in order shown in the fig. 3.5. 2. Each orbital can hold only two electrons, which must be oppositely spin. 3. ...
... arrangement of electrons in atom’s shells and subshells. Rules to predict electron configuration: 1. Electrons occupy the lowest-energy orbitals available, beginning with 1s and continuing in order shown in the fig. 3.5. 2. Each orbital can hold only two electrons, which must be oppositely spin. 3. ...
Name
... 14. What do isotopes of the same element have in common and what is different? Isotopes have the same atomic number, # of protons & # of electrons. Isotopes have different mass numbers and # of neutrons. 15. An element has 19 protons, 19 electrons and 20 neutrons. It has an atomic number of __19_ an ...
... 14. What do isotopes of the same element have in common and what is different? Isotopes have the same atomic number, # of protons & # of electrons. Isotopes have different mass numbers and # of neutrons. 15. An element has 19 protons, 19 electrons and 20 neutrons. It has an atomic number of __19_ an ...
NGSS Ps1. 1 Targets 1 and 2- Atoms, Elements, Molecules, and
... (N2) are not compounds because each is composed of a SINGLE element. Water (H2O), carbon dioxide (CO2) and methane (CH4) are compounds because each is made from more than one element. The smallest bit of each of these substances (COMPOUNDS) would be referred to as a molecule. ...
... (N2) are not compounds because each is composed of a SINGLE element. Water (H2O), carbon dioxide (CO2) and methane (CH4) are compounds because each is made from more than one element. The smallest bit of each of these substances (COMPOUNDS) would be referred to as a molecule. ...
Intro to Chapter 5 Development of the Periodic Table
... observations followed by organization of data into trends resulted in a consistent hypothesis which could explain known facts and makes correct predictions of the elements. B. Mendeleev s organized chemical information by: 1) listing elements by atomic weight 2) grouping them together according to c ...
... observations followed by organization of data into trends resulted in a consistent hypothesis which could explain known facts and makes correct predictions of the elements. B. Mendeleev s organized chemical information by: 1) listing elements by atomic weight 2) grouping them together according to c ...
Chapter One Outline
... The law of constant composition states that a chemical compound always contains the same elements in the same proportions by mass The Modern Atomic Theory ...
... The law of constant composition states that a chemical compound always contains the same elements in the same proportions by mass The Modern Atomic Theory ...
Topic 3 Review
... • He also found the charge to mass ratio of the electrons. • Millikan measured the charge of the electrons. • The mass of an electron was found to be about 1/2000! the mass of a hydrogen atom. ...
... • He also found the charge to mass ratio of the electrons. • Millikan measured the charge of the electrons. • The mass of an electron was found to be about 1/2000! the mass of a hydrogen atom. ...
Ch 4 and Ch 5 Study Guide (ICP) Multiple Choice Identify the choice
... 51. Neutrons and protons are found in the _______________________ of an atom. 52. An atom of potassium has a mass number of 39 and an atomic number of 19. It therefore has _______________________ neutrons in its nucleus. 53. When an atom gains or loses energy, _______________________ jump between en ...
... 51. Neutrons and protons are found in the _______________________ of an atom. 52. An atom of potassium has a mass number of 39 and an atomic number of 19. It therefore has _______________________ neutrons in its nucleus. 53. When an atom gains or loses energy, _______________________ jump between en ...
Chapter Two - Alfred State College intranet site
... in order of atomic weight, they could be placed in horizontal rows, one row under the other, so that the elements in vertical columns have similar properties! ...
... in order of atomic weight, they could be placed in horizontal rows, one row under the other, so that the elements in vertical columns have similar properties! ...
Chemistry Terms
... periodic table of elements. periodic table of elements A gridlike listing of the known elements that is arranged such that elements within vertical row have similar properties. proton One of the two types of particles that make up an atomic nucleus. It has an electric charge of +1.6 × 10-19 Coulombs ...
... periodic table of elements. periodic table of elements A gridlike listing of the known elements that is arranged such that elements within vertical row have similar properties. proton One of the two types of particles that make up an atomic nucleus. It has an electric charge of +1.6 × 10-19 Coulombs ...
Chemistry of Life: The Chemical Compounds in Cells
... 1. An element is any substance that cannot be broken down into simpler substances. 2. There are 92 naturally occurring elements and more than 20 that have been created by scientists in labs. 3. The most common elements in living things are carbon, hydrogen, oxygen, and nitrogen (CHON). 4. The Period ...
... 1. An element is any substance that cannot be broken down into simpler substances. 2. There are 92 naturally occurring elements and more than 20 that have been created by scientists in labs. 3. The most common elements in living things are carbon, hydrogen, oxygen, and nitrogen (CHON). 4. The Period ...
Document
... a) The mass of a proton is greater than the mass of an electron. b) A proton is positively charged and an electron is negatively charged. c) Most of the atom’s volume is the sphere-shaped cloud of electrons d) One or more neutrons in the nucleus add mass to the atom. ...
... a) The mass of a proton is greater than the mass of an electron. b) A proton is positively charged and an electron is negatively charged. c) Most of the atom’s volume is the sphere-shaped cloud of electrons d) One or more neutrons in the nucleus add mass to the atom. ...
Slide 1 - Effingham County Schools
... definition of an element as a substance that cannot be further broken down by ordinary chemical means. •It was also clear that elements combine to form compounds that have different physical and chemical properties than those of the elements that form them. Na + Cl → NaCl ...
... definition of an element as a substance that cannot be further broken down by ordinary chemical means. •It was also clear that elements combine to form compounds that have different physical and chemical properties than those of the elements that form them. Na + Cl → NaCl ...
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 ...
Chemistry Test #1 Study Guide © Chris Khan
... Diatomic Molecule—contains two atoms; Polyatomic Molecule—more than 2 atoms Ion—atom with + or – charge; Cation—net positive charge; Anion—net negative charge Allotrope—one of two or more distinct forms of an element Organic Compounds have carbon while Inorganic don’t Ionic Compounds—have a metal an ...
... Diatomic Molecule—contains two atoms; Polyatomic Molecule—more than 2 atoms Ion—atom with + or – charge; Cation—net positive charge; Anion—net negative charge Allotrope—one of two or more distinct forms of an element Organic Compounds have carbon while Inorganic don’t Ionic Compounds—have a metal an ...
Atoms, Molecules, and Ions
... Each element is composed of extremely small particles called atoms. All atoms of a given element are identical; the atoms of different elements are different and have different properties. Atoms of an element are not changed into different types of atoms by chemical changes; atoms are neither create ...
... Each element is composed of extremely small particles called atoms. All atoms of a given element are identical; the atoms of different elements are different and have different properties. Atoms of an element are not changed into different types of atoms by chemical changes; atoms are neither create ...
Review Periodicity
... 15. The potassium ion is (larger, smaller, the same size ) than the neutral atom. The reason why is electrons were (gained, lost, shared) making the nuclear force increase, decrease, remain the same) 16. The silicon ion is (larger, smaller, the same size) than the neutral atom. The reason why is ele ...
... 15. The potassium ion is (larger, smaller, the same size ) than the neutral atom. The reason why is electrons were (gained, lost, shared) making the nuclear force increase, decrease, remain the same) 16. The silicon ion is (larger, smaller, the same size) than the neutral atom. The reason why is ele ...