File - Flipped Out Science with Mrs. Thomas!
... Atom – The atom is a basic unit of matter and the smallest unit of an element. Atomic Mass – The total number of protons and neutrons in an atom Atomic Number – The number of protons in an atomic nucleus Balanced equation - occurs when the number of the different atoms of elements in the reactants s ...
... Atom – The atom is a basic unit of matter and the smallest unit of an element. Atomic Mass – The total number of protons and neutrons in an atom Atomic Number – The number of protons in an atomic nucleus Balanced equation - occurs when the number of the different atoms of elements in the reactants s ...
Chemistry Unit Test Study Guide (2012-2013)
... a. pH range for bases: ____________ True / False. Strong Acids and Strong Bases are both corrosive, which means they eat away at body tissue and dissolve other objects, and should always be handled with care. Interpreting a pH scale diagram: a. Identify the strongest acid shown on the pH scale below ...
... a. pH range for bases: ____________ True / False. Strong Acids and Strong Bases are both corrosive, which means they eat away at body tissue and dissolve other objects, and should always be handled with care. Interpreting a pH scale diagram: a. Identify the strongest acid shown on the pH scale below ...
Chapter 5 - Effingham County Schools
... Atoms are extremely small. Over a million can fit in the period at the end of this sentence. The identity of an atom is determined by the number of protons in its nucleus, called the ________ ________. For example, a hydrogen atom has 1 proton so its atomic number is 1. The total number of _______ a ...
... Atoms are extremely small. Over a million can fit in the period at the end of this sentence. The identity of an atom is determined by the number of protons in its nucleus, called the ________ ________. For example, a hydrogen atom has 1 proton so its atomic number is 1. The total number of _______ a ...
Chapter 3 Practice Test
... _________ 16. Of the following particles, those not found in the nucleus of an atom are a. protons. b. neutrons. c. electrons. d. protons and neutrons. _________ 17. Different atoms of the same element may have different a. numbers of protons. b. atomic numbers. c. atomic masses. d. numbers of elect ...
... _________ 16. Of the following particles, those not found in the nucleus of an atom are a. protons. b. neutrons. c. electrons. d. protons and neutrons. _________ 17. Different atoms of the same element may have different a. numbers of protons. b. atomic numbers. c. atomic masses. d. numbers of elect ...
The Atom and The Periodic Table of Elements
... charged electrons were scattered outside the nucleus around the atom’s edge. (credited for splitting the first atom) – Nucleus – the tiny, extremely dense, positively charged region in the center of an atom. ...
... charged electrons were scattered outside the nucleus around the atom’s edge. (credited for splitting the first atom) – Nucleus – the tiny, extremely dense, positively charged region in the center of an atom. ...
The Atom and The Periodic Table of Elements
... charged electrons were scattered outside the nucleus around the atom’s edge. (credited for splitting the first atom) – Nucleus – the tiny, extremely dense, positively charged region in the center of an atom. ...
... charged electrons were scattered outside the nucleus around the atom’s edge. (credited for splitting the first atom) – Nucleus – the tiny, extremely dense, positively charged region in the center of an atom. ...
The parts of Dalton`s theory Matter is composed of small, chemically
... Example: Helium has an atomic number of 2. Every helium atom has two protons in its nucleus. - MASS NUMBER: The number of protons PLUS the number of neutrons in the atomic nucleus, Atoms of the same element may have DIFFERENT mass numbers. - ISOTOPES: are atoms of the same element with different mas ...
... Example: Helium has an atomic number of 2. Every helium atom has two protons in its nucleus. - MASS NUMBER: The number of protons PLUS the number of neutrons in the atomic nucleus, Atoms of the same element may have DIFFERENT mass numbers. - ISOTOPES: are atoms of the same element with different mas ...
Chapter 4 Atomic Structure I. History of the Atom A. Democritus (400
... 1. Ground state: All the electrons in an atom have the lowest possible energy a. Stable 2. Excited state: An electron moves to an orbital of higher energy a. Less stable Chapter 5 Periodic Table I. Organizing the elements A. Mendeleev’s Periodic Table 1. Arranged in rows by increasing atomic mass 2. ...
... 1. Ground state: All the electrons in an atom have the lowest possible energy a. Stable 2. Excited state: An electron moves to an orbital of higher energy a. Less stable Chapter 5 Periodic Table I. Organizing the elements A. Mendeleev’s Periodic Table 1. Arranged in rows by increasing atomic mass 2. ...
Level 1- Recap, The Atom
... arrange themselves in to some type of stable structure. It's all about the electrical charges between the nucleus and the electrons in the shells. ...
... arrange themselves in to some type of stable structure. It's all about the electrical charges between the nucleus and the electrons in the shells. ...
Reporting Category 1 Answer Key
... How many groups or families of elements are on the table? 18 How many periods of elements are on the table? 7 Valence Electrons – outermost electrons, determine chemical properties and reactivity Elements have similar properties because? They have the same # of valence electrons Reactivity – how eas ...
... How many groups or families of elements are on the table? 18 How many periods of elements are on the table? 7 Valence Electrons – outermost electrons, determine chemical properties and reactivity Elements have similar properties because? They have the same # of valence electrons Reactivity – how eas ...
Reporting Category 1 Answer Key
... How many groups or families of elements are on the table? 18 How many periods of elements are on the table? 7 Valence Electrons – outermost electrons, determine chemical properties and reactivity Elements have similar properties because? They have the same # of valence electrons Reactivity – how eas ...
... How many groups or families of elements are on the table? 18 How many periods of elements are on the table? 7 Valence Electrons – outermost electrons, determine chemical properties and reactivity Elements have similar properties because? They have the same # of valence electrons Reactivity – how eas ...
Semester Exam Practice Questions
... c. the same number of energy levels b. similar atomic masses d. similar atomic diameters Examine the following electron configuration and choose the correct location of the element it represents in the periodic table: 1s22s22p63s24s23d104p65s24d7 a. row 7, column 4 (Rf) c. row 5, column 7 (Tc) b. ro ...
... c. the same number of energy levels b. similar atomic masses d. similar atomic diameters Examine the following electron configuration and choose the correct location of the element it represents in the periodic table: 1s22s22p63s24s23d104p65s24d7 a. row 7, column 4 (Rf) c. row 5, column 7 (Tc) b. ro ...
ATOMS AND THE PERIODIC TABLE chapter three
... The AVERAGE MASS of an ATOM • Why is the mass number not an even number? – Atoms of the same element exist with different numbers of neutrons. – This makes the mass of different atoms of the same element different. – The average mass is a weighted number so that more common isotopes have a greater a ...
... The AVERAGE MASS of an ATOM • Why is the mass number not an even number? – Atoms of the same element exist with different numbers of neutrons. – This makes the mass of different atoms of the same element different. – The average mass is a weighted number so that more common isotopes have a greater a ...
Atomic Structure
... Scientist use units known as Atomic mass units (amu) A proton or a neutron has a mass equal to about 1/1000th Atomic Mass is equal to the number of protons and neutrons in an atom. ...
... Scientist use units known as Atomic mass units (amu) A proton or a neutron has a mass equal to about 1/1000th Atomic Mass is equal to the number of protons and neutrons in an atom. ...
Chemical Periodicity
... the size of an atom depends on how far away the valence/outermost electrons are from the nucleus if the electrons are very close to the nucleus, then the atom will be very small if the electrons are very far from the nucleus, then the atom will be large ...
... the size of an atom depends on how far away the valence/outermost electrons are from the nucleus if the electrons are very close to the nucleus, then the atom will be very small if the electrons are very far from the nucleus, then the atom will be large ...
File
... Each electron has a specific amount of energy that keeps it away from the nucleus. The farther away the electron, the more energy it has. Electrons start in the lowest energy level permitted, called ground state. Energy can be absorbed and electrons will move up to a higher level, called the ...
... Each electron has a specific amount of energy that keeps it away from the nucleus. The farther away the electron, the more energy it has. Electrons start in the lowest energy level permitted, called ground state. Energy can be absorbed and electrons will move up to a higher level, called the ...
Atomic Structure - s3.amazonaws.com
... The smallest part of an element that still has the element’s properties ◦ Remember that elements are on the Periodic Table and are represented by a capital letter or a capital letter and lower case letter ...
... The smallest part of an element that still has the element’s properties ◦ Remember that elements are on the Periodic Table and are represented by a capital letter or a capital letter and lower case letter ...
Review for Exam 1
... Represent the valence electrons by drawing them around the element symbol for Selenium. ...
... Represent the valence electrons by drawing them around the element symbol for Selenium. ...
Atomic Structure – Revision Pack (C4) Atoms: A nucleus is made up
... Arrangement of electrons: The elements of the periodic table are arranged in order of increasing atomic number. The amount of electrons is different for the shells of an atom: The maximum number of electrons for the first shell is 2. The maximum number of electrons for all of the shells from then is ...
... Arrangement of electrons: The elements of the periodic table are arranged in order of increasing atomic number. The amount of electrons is different for the shells of an atom: The maximum number of electrons for the first shell is 2. The maximum number of electrons for all of the shells from then is ...
C4 Atomic structure
... Arrangement of electrons: The elements of the periodic table are arranged in order of increasing atomic number. The amount of electrons is different for the shells of an atom: The maximum number of electrons for the first shell is 2. The maximum number of electrons for all of the shells from then is ...
... Arrangement of electrons: The elements of the periodic table are arranged in order of increasing atomic number. The amount of electrons is different for the shells of an atom: The maximum number of electrons for the first shell is 2. The maximum number of electrons for all of the shells from then is ...
Unit 3 - Chemistry
... _______________ reaction and to form new _______________. • Chemical properties are only observed when a substance undergoes a chemical change. • A chemical change always results in a change in the chemical _______________ of the substances involved. ...
... _______________ reaction and to form new _______________. • Chemical properties are only observed when a substance undergoes a chemical change. • A chemical change always results in a change in the chemical _______________ of the substances involved. ...
6.1 Atoms and Elements
... 3. Atoms consist of protons and neutrons in the central core surrounded by electrons. Parts of the Atom Proton: a positively charged particle in an atom. Neutron: a particle in an atom that has no electrical charge. Electron: is a negatively charged particle found in an orbit outside the nucleus of ...
... 3. Atoms consist of protons and neutrons in the central core surrounded by electrons. Parts of the Atom Proton: a positively charged particle in an atom. Neutron: a particle in an atom that has no electrical charge. Electron: is a negatively charged particle found in an orbit outside the nucleus of ...
Atoms - RPDP
... Electrons are arranged in energy levels. Electrons with the lowest energy can be found in the energy level closest to the nucleus. Energy levels can hold 2, 8, 18 ...
... Electrons are arranged in energy levels. Electrons with the lowest energy can be found in the energy level closest to the nucleus. Energy levels can hold 2, 8, 18 ...
1A-2 The Atom – Building Blocks of Matter
... Atoms of the same element can vary in the number of neutrons contained in the nucleus. These different types of the same element differ only by their atomic mass, and are called isotopes. ...
... Atoms of the same element can vary in the number of neutrons contained in the nucleus. These different types of the same element differ only by their atomic mass, and are called isotopes. ...