IPC – First Semester Exam Review Be able to classify an example
... Elements in the same group have similar reactivity since they have the same number of valence electrons. Reactivity is how elements and compounds react to other substances. o Noble gases are nonreactive (inert) because their valence energy level is full o Elements are generally reactive when the v ...
... Elements in the same group have similar reactivity since they have the same number of valence electrons. Reactivity is how elements and compounds react to other substances. o Noble gases are nonreactive (inert) because their valence energy level is full o Elements are generally reactive when the v ...
Unit 2 Review: Chemistry - Mr. Hoover's Science Classes
... atoms are about 55.85 times heavier than hydrogen atoms. Atomic masses are always expressed as decimal fractions. One reason that they do not have whole number values is that, except for fluorine, atoms of the same element have different numbers of neutrons. ...
... atoms are about 55.85 times heavier than hydrogen atoms. Atomic masses are always expressed as decimal fractions. One reason that they do not have whole number values is that, except for fluorine, atoms of the same element have different numbers of neutrons. ...
Periodic Table Extra Practice ANSWER KEY 2014
... 1. Horizontal rows of the periodic table are called periods 2. How does the period of an element is in relate to its structure? The period equals the number of energy levels or shells around the nucleus 3. How many periods are there on the periodic table? 7 4. Columns of the periodic table are calle ...
... 1. Horizontal rows of the periodic table are called periods 2. How does the period of an element is in relate to its structure? The period equals the number of energy levels or shells around the nucleus 3. How many periods are there on the periodic table? 7 4. Columns of the periodic table are calle ...
Chapter 4
... given space. • Some configurations are more stable than others, meaning that they are less likely to change. • An electron configuration is the arrangement of electrons in the orbitals of an atom. • The most stable electron configuration is the one in which the electrons are in orbitals with the low ...
... given space. • Some configurations are more stable than others, meaning that they are less likely to change. • An electron configuration is the arrangement of electrons in the orbitals of an atom. • The most stable electron configuration is the one in which the electrons are in orbitals with the low ...
Chapter 04 Atomic Theory Notes
... given space. • Some configurations are more stable than others, meaning that they are less likely to change. • An electron configuration is the arrangement of electrons in the orbitals of an atom. • The most stable electron configuration is the one in which the electrons are in orbitals with the low ...
... given space. • Some configurations are more stable than others, meaning that they are less likely to change. • An electron configuration is the arrangement of electrons in the orbitals of an atom. • The most stable electron configuration is the one in which the electrons are in orbitals with the low ...
subatomic particles
... - Atomic mass unit (amu): 1 proton has a mass of 1 amu; determined by taking the mass of a Carbon-12 atom and dividing by the total number of particles. - Atomic number: the number of protons in an atom. - Mass number: the sum of the protons and neutrons in an atom. - Isotopes: atoms of the same ele ...
... - Atomic mass unit (amu): 1 proton has a mass of 1 amu; determined by taking the mass of a Carbon-12 atom and dividing by the total number of particles. - Atomic number: the number of protons in an atom. - Mass number: the sum of the protons and neutrons in an atom. - Isotopes: atoms of the same ele ...
Identify the following properties as either - Teach-n-Learn-Chem
... 34. Why do metals generally have lower ionizations energies than nonmetals? Metals have loosely held valence electrons. Metals want to lose electrons to have a stable octet. It is easier for a metal to lose 1,2, 3, or 4 electrons than gain that number. Metals have low electronegativities and are not ...
... 34. Why do metals generally have lower ionizations energies than nonmetals? Metals have loosely held valence electrons. Metals want to lose electrons to have a stable octet. It is easier for a metal to lose 1,2, 3, or 4 electrons than gain that number. Metals have low electronegativities and are not ...
File
... All atoms of the same element will always have the same number of protons. Protons determine the identity of the element. Different atoms of an element may have different numbers of electrons; this forms ions. Atoms may also differ in their number of neutrons, creating isotopes. Isotopes of the same ...
... All atoms of the same element will always have the same number of protons. Protons determine the identity of the element. Different atoms of an element may have different numbers of electrons; this forms ions. Atoms may also differ in their number of neutrons, creating isotopes. Isotopes of the same ...
atom n
... undivided in chemical reactions except for limited removal, transfer, or exchange of certain electrons. The history of the study of the atomic nature of matter illustrates the thinking process that goes on in the philosophers and scientists heads. The models they use do not provide an absolute under ...
... undivided in chemical reactions except for limited removal, transfer, or exchange of certain electrons. The history of the study of the atomic nature of matter illustrates the thinking process that goes on in the philosophers and scientists heads. The models they use do not provide an absolute under ...
Atomic Theory Review 3 Which scientist described atoms as
... The number of electrons in an atom is the same for all neutral atoms of that element. True False ...
... The number of electrons in an atom is the same for all neutral atoms of that element. True False ...
Protons, Neutrons, Electrons
... We know that atoms are made of protons, electrons, and neutrons. This sheet will discuss how we show the composition of atoms: How many p, e, and n a particular atom has. We will also relate the makeup of each element’s atoms to the periodic table. Key terms to know, covered on this sheet: Atomic nu ...
... We know that atoms are made of protons, electrons, and neutrons. This sheet will discuss how we show the composition of atoms: How many p, e, and n a particular atom has. We will also relate the makeup of each element’s atoms to the periodic table. Key terms to know, covered on this sheet: Atomic nu ...
Chapter 2
... – absorb energy by excitation of electrons to higher energy levels – release energy by relaxation of electrons to lower energy levels ...
... – absorb energy by excitation of electrons to higher energy levels – release energy by relaxation of electrons to lower energy levels ...
Chemistry - Napa Valley College
... Patient is injected with a compound that is labeled with an unstable isotope Cancer cells are growing faster and take up more of the compound than normal cells Abnormal tissue takes up less of the compounds ...
... Patient is injected with a compound that is labeled with an unstable isotope Cancer cells are growing faster and take up more of the compound than normal cells Abnormal tissue takes up less of the compounds ...
Atomic Structure - What you should already know
... The atom written as 3617Cl can also be expressed as Cl-36. The 17 is understood, because we are referring to the chlorine atom. The 36 refers to the Mass Number. ...
... The atom written as 3617Cl can also be expressed as Cl-36. The 17 is understood, because we are referring to the chlorine atom. The 36 refers to the Mass Number. ...
Document
... 2. Which of the following is not an element? 1. oxygen 2. sodium chloride 3. hydrogen 4. nitrogen ...
... 2. Which of the following is not an element? 1. oxygen 2. sodium chloride 3. hydrogen 4. nitrogen ...
Constructing an Atom We`re going sub-atomic!
... • Electrons- Electrons are located outside of the nucleus and are negatively charged! – They are constantly moving. ...
... • Electrons- Electrons are located outside of the nucleus and are negatively charged! – They are constantly moving. ...
Chpt. 5 Study Guide for Fall Final
... A) neutrons and electrons B ) protons and neutrons C) protons and electrons D) electrons only E) None of the above 8) Which statement is true about the discovery of electrons? A) Electrons were discovered after the TV tube was invented. B ) Electrons were discovered when anode rays were identified i ...
... A) neutrons and electrons B ) protons and neutrons C) protons and electrons D) electrons only E) None of the above 8) Which statement is true about the discovery of electrons? A) Electrons were discovered after the TV tube was invented. B ) Electrons were discovered when anode rays were identified i ...
I, I, I, 4- Measurement Unit Conversions- Kilo
... Describe trends in properties (e.g., ionization energy or reactivity as a function of location on the periodic table, boiling point of organic liquids as a function of molecular weight). Atomic radius is one-half of the distance between the center of identical atoms that are not bonded together. Ion ...
... Describe trends in properties (e.g., ionization energy or reactivity as a function of location on the periodic table, boiling point of organic liquids as a function of molecular weight). Atomic radius is one-half of the distance between the center of identical atoms that are not bonded together. Ion ...
Atoms: The Building Blocks of Matter Date:
... both A and C have different masses they are isotopes of that element. ------------------------------------------------------------------------------------------------Most of us learned that to find the average of a given series of numbers, we must add the numbers together and divide by the total n ...
... both A and C have different masses they are isotopes of that element. ------------------------------------------------------------------------------------------------Most of us learned that to find the average of a given series of numbers, we must add the numbers together and divide by the total n ...
Chapter 7 Atomic Structure and Periodicity
... -Lithium, Sodium, Potassium, Rubidium, Cesium, and Francium are the most chemically reactive of the metals. -Although Hydrogen is found in Group 1A of the periodic table, it behaves as a non-metal. The fundamental reason for Hydrogen’s non-metallic character is its very small size. The electron in t ...
... -Lithium, Sodium, Potassium, Rubidium, Cesium, and Francium are the most chemically reactive of the metals. -Although Hydrogen is found in Group 1A of the periodic table, it behaves as a non-metal. The fundamental reason for Hydrogen’s non-metallic character is its very small size. The electron in t ...
Energy
... • He found that only specific wavelengths of light could be emitted by each different type of atom. ...
... • He found that only specific wavelengths of light could be emitted by each different type of atom. ...
File - Science with Mr Thompson
... 6. Number of electrons = number of protons because an atom is always neutral! 7. Neutrons: Carry a neutral charge. Make atoms stable (or not). 8. Atomic number: The number of protons in the nucleus of the atom, which determines its chemical properties and its position in periodic table. Examples: Ox ...
... 6. Number of electrons = number of protons because an atom is always neutral! 7. Neutrons: Carry a neutral charge. Make atoms stable (or not). 8. Atomic number: The number of protons in the nucleus of the atom, which determines its chemical properties and its position in periodic table. Examples: Ox ...