Matter Test: Review
... 23. Is the following sentence true or false? Two atoms of the same element can have different numbers of protons. 24. Circle the letters that identify quantities that are always equal to an element’s atomic number. a. Number of nuclei b. Number of protons c. Number of neutrons d. Number of electrons ...
... 23. Is the following sentence true or false? Two atoms of the same element can have different numbers of protons. 24. Circle the letters that identify quantities that are always equal to an element’s atomic number. a. Number of nuclei b. Number of protons c. Number of neutrons d. Number of electrons ...
Unit 4 Study Guide Groups to know: Alkali Metals
... Modified Theory: The atom has a very dense, positively charged core (the nucleus) Niels Bohr - Bohr Model -proposed that electrons orbit the nucleus in distinct energy levels like planets around the sun Modern Atomic Theory -Electrons move randomly around the nucleus in the electron cloud -We cannot ...
... Modified Theory: The atom has a very dense, positively charged core (the nucleus) Niels Bohr - Bohr Model -proposed that electrons orbit the nucleus in distinct energy levels like planets around the sun Modern Atomic Theory -Electrons move randomly around the nucleus in the electron cloud -We cannot ...
Unit 4
... The resources included here provide teaching examples and/or meaningful learning experiences to address the District Curriculum. In order to address the TEKS to the proper depth and complexity, teachers are encouraged to use resources to the degree that they are congruent with the TEKS and researc ...
... The resources included here provide teaching examples and/or meaningful learning experiences to address the District Curriculum. In order to address the TEKS to the proper depth and complexity, teachers are encouraged to use resources to the degree that they are congruent with the TEKS and researc ...
john dalton - sced350akdeniz
... compounds; a given compound always has the same relative numbers of types of atoms. Atoms cannot be created, divided into smaller particles, nor destroyed in the chemical process; a chemical reaction simply changes the way atoms are grouped ...
... compounds; a given compound always has the same relative numbers of types of atoms. Atoms cannot be created, divided into smaller particles, nor destroyed in the chemical process; a chemical reaction simply changes the way atoms are grouped ...
Matter Review
... • In your notes, use your periodic tables to determine the following for the elements at the bottom. – The number of protons – The number of neutrons – The number of shells – The number of electrons on the outer most shell (valence electrons) – Draw the atoms for each ...
... • In your notes, use your periodic tables to determine the following for the elements at the bottom. – The number of protons – The number of neutrons – The number of shells – The number of electrons on the outer most shell (valence electrons) – Draw the atoms for each ...
Questions About Atoms and Elements
... Questions About Atoms and Elements Chemistry 1.) The following statements are about the particles that make up the atom. For each statement write: p if it describes the proton e if it describes the electron n if it describes the neutron a.) The positively-charged particle ______ b.) Found with the p ...
... Questions About Atoms and Elements Chemistry 1.) The following statements are about the particles that make up the atom. For each statement write: p if it describes the proton e if it describes the electron n if it describes the neutron a.) The positively-charged particle ______ b.) Found with the p ...
File
... passed on to the next generation, I believe it is that all things are made of atoms.” Are the models and theories which scientists create accurate descriptions of the natural world, or are they primarily useful interpretations for prediction, explanation and control of the natural ...
... passed on to the next generation, I believe it is that all things are made of atoms.” Are the models and theories which scientists create accurate descriptions of the natural world, or are they primarily useful interpretations for prediction, explanation and control of the natural ...
Fall Semester Review Packet
... variable and a control. Describe how these variables relate to one another during an experiment. 12. Explain the difference between accuracy and precision when describing scientific measurements. 13. Explain how atoms of the same element may differ. Include all of the following terms in your explana ...
... variable and a control. Describe how these variables relate to one another during an experiment. 12. Explain the difference between accuracy and precision when describing scientific measurements. 13. Explain how atoms of the same element may differ. Include all of the following terms in your explana ...
Chapter 4 Review Worksheet
... 3. Use the following information to determine the atomic mass of chlorine. Two isotopes are known: chlorine-35 (mass = 34.97 amu) and chlorine-37 (mass = 36.97 amu). The relative abundance’s are 75.4% and 24. 6%, respectively. ...
... 3. Use the following information to determine the atomic mass of chlorine. Two isotopes are known: chlorine-35 (mass = 34.97 amu) and chlorine-37 (mass = 36.97 amu). The relative abundance’s are 75.4% and 24. 6%, respectively. ...
chapter2 2012 (no naming)
... neutrons and mass numbers • Relationships: • Atomic number = # p+ • Charge = p+ - e• Mass # = p+ + n0 ...
... neutrons and mass numbers • Relationships: • Atomic number = # p+ • Charge = p+ - e• Mass # = p+ + n0 ...
Study Guide Answers
... 21. A mixture is created when two pure substances are combined so that each of the pure substances retains its own properties. 22. Where is the majority of the mass of an atom located? In the nucleus. 23. If an atom loses electron’s, will it have a positive or negative charge? Explain. Positive char ...
... 21. A mixture is created when two pure substances are combined so that each of the pure substances retains its own properties. 22. Where is the majority of the mass of an atom located? In the nucleus. 23. If an atom loses electron’s, will it have a positive or negative charge? Explain. Positive char ...
History of Atomic Structure
... When: More than 2000 years ago (400 B.C.) Where: Greece What: Aristotle believed in 4 elements: Earth, Air, Fire, and Water. Democritus believed that matter was made of small particles he ...
... When: More than 2000 years ago (400 B.C.) Where: Greece What: Aristotle believed in 4 elements: Earth, Air, Fire, and Water. Democritus believed that matter was made of small particles he ...
Exam #2 Review
... Atomic Model History – MAKE SURE YOU CAN MATCH EACH SCIENTIST TO HIS MODEL!! 1. Draw and name each scientist’s model of the atom: a. Dalton Billiard Ball Model ...
... Atomic Model History – MAKE SURE YOU CAN MATCH EACH SCIENTIST TO HIS MODEL!! 1. Draw and name each scientist’s model of the atom: a. Dalton Billiard Ball Model ...
Unit III * Introduction to Atomic Theory
... Isotopes • Atoms with the same number of protons, but different numbers of neutrons • Isotopes of an element have the same atomic number, but different mass numbers • Nuclear Symbol or Isotopic symbol: shows number of protons & mass number of an atom ...
... Isotopes • Atoms with the same number of protons, but different numbers of neutrons • Isotopes of an element have the same atomic number, but different mass numbers • Nuclear Symbol or Isotopic symbol: shows number of protons & mass number of an atom ...
Study Island Copyright © 2012 Study Island
... 15. Which of the following is true about a compound and its elements? A. The properties of a compound are the same as the properties of its elements. B. The elements all share identical properties, but their properties are different than the compound's properties. C. The properties of a compound are ...
... 15. Which of the following is true about a compound and its elements? A. The properties of a compound are the same as the properties of its elements. B. The elements all share identical properties, but their properties are different than the compound's properties. C. The properties of a compound are ...
Notes Ch 4.1 and 4.2
... science is a process many scientists contribute to it the model changes over time the model will change in the future as more research leads to new discoveries ...
... science is a process many scientists contribute to it the model changes over time the model will change in the future as more research leads to new discoveries ...
Subatomic notes - Chemistry R: 4(AE) 5(A,C)
... the radius of the nucleus to be less than 1/10,000 of the atom. – If the nucleus were the size of a marble, the atom would be the size of a football stadium ...
... the radius of the nucleus to be less than 1/10,000 of the atom. – If the nucleus were the size of a marble, the atom would be the size of a football stadium ...
Atoms and Isotopes
... They are atoms of the same element that have different Number of Neutrons but must have the same number of Protons. ...
... They are atoms of the same element that have different Number of Neutrons but must have the same number of Protons. ...
Subatomic Particles Do Now • What is an atom?
... Using measurements from Rutherford’s experiment, scientists calculated the radius of the nucleus to be less than 1/10,000 of the atom. – If the nucleus were the size of a ________, the atom would be the size of a __________________ ...
... Using measurements from Rutherford’s experiment, scientists calculated the radius of the nucleus to be less than 1/10,000 of the atom. – If the nucleus were the size of a ________, the atom would be the size of a __________________ ...
What is Chemistry? Chemistry
... o Atoms that gain electrons to form compounds are called anions. Anions have a _________________________________. o Naming Anions: Drop the last few letters of the element name and add “ide”. o E.g. Group 17 (Halogens) gain electrons easily and release lots of energy in the process highly reactive ...
... o Atoms that gain electrons to form compounds are called anions. Anions have a _________________________________. o Naming Anions: Drop the last few letters of the element name and add “ide”. o E.g. Group 17 (Halogens) gain electrons easily and release lots of energy in the process highly reactive ...
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 ...
Introduction to Atoms
... • Atoms are the building blocks of all materials • An atom is made of 3 parts: – Protons and Neutrons are in the nucleus (center) – Electrons orbit around the nucleus ...
... • Atoms are the building blocks of all materials • An atom is made of 3 parts: – Protons and Neutrons are in the nucleus (center) – Electrons orbit around the nucleus ...
isotopes notes
... • Neutrons were the last subatomic particles to be discovered because they have no electrical charge. ...
... • Neutrons were the last subatomic particles to be discovered because they have no electrical charge. ...
20161013082744
... distinguished by mass, charge, and location in an atom. • Protons and neutrons have almost the same mass • It would take about 2,000 electrons to equal the mass of one proton • Protons and neutrons are inside nucleus, electrons are in outside space ...
... distinguished by mass, charge, and location in an atom. • Protons and neutrons have almost the same mass • It would take about 2,000 electrons to equal the mass of one proton • Protons and neutrons are inside nucleus, electrons are in outside space ...