Science notes on Atoms, Periodic table
... Basically includes all the elements along the staircase at 13 (boron, silicon, germanium, arsenic, antimony, tellurium & astatine) They have both metal & non-metal properties Sometimes good conductors of electricity ...
... Basically includes all the elements along the staircase at 13 (boron, silicon, germanium, arsenic, antimony, tellurium & astatine) They have both metal & non-metal properties Sometimes good conductors of electricity ...
PPT Test Review
... elements in the periodic table, the number of valence electrons____________ from left to right. ...
... elements in the periodic table, the number of valence electrons____________ from left to right. ...
Chapter 18 Notes
... atomic theory—states that all matter is composed of tiny particles called atoms o John Dalton was one of the first scientists to gather evidence for the atomic theory o Dalton’s Atomic Theory: • Each element is composed of atoms • All atoms of a given element are identical • Atoms of different eleme ...
... atomic theory—states that all matter is composed of tiny particles called atoms o John Dalton was one of the first scientists to gather evidence for the atomic theory o Dalton’s Atomic Theory: • Each element is composed of atoms • All atoms of a given element are identical • Atoms of different eleme ...
Review Chemistry KEY - cms16-17
... 32. List each element in the following compounds and the number of atoms of each element present and the total number of atoms. a. C6H8O6 (Vitamin C): i. Elements: C, H, and O_____________________________________ ii. Atoms: C=6, H=8, and O=6 Total number of atoms=20___________ b. C8H10O2N4H2O (Caffe ...
... 32. List each element in the following compounds and the number of atoms of each element present and the total number of atoms. a. C6H8O6 (Vitamin C): i. Elements: C, H, and O_____________________________________ ii. Atoms: C=6, H=8, and O=6 Total number of atoms=20___________ b. C8H10O2N4H2O (Caffe ...
Chapter 2 Test Review - Mercer Island School District
... A balanced equation follows what Law? Give an example of a balanced equation, and explain why it must be balanced Balancing demonstrates the Law of Conservation of Matter: Matter cannot be created or destroyed during a chemical reaction. Matter can only be rearranged. 2AgCl + Na2SO4 Ag2SO4 + 2NaCl ...
... A balanced equation follows what Law? Give an example of a balanced equation, and explain why it must be balanced Balancing demonstrates the Law of Conservation of Matter: Matter cannot be created or destroyed during a chemical reaction. Matter can only be rearranged. 2AgCl + Na2SO4 Ag2SO4 + 2NaCl ...
6.1 Organizing the Periodic Table
... that is in the highest occupied energy level of an atom • Valence electrons play a key role in chemical reactions • Properties vary across a period because the # of valence electrons increases from left to right • Elements in a group have similar properties because they have the same # of valence el ...
... that is in the highest occupied energy level of an atom • Valence electrons play a key role in chemical reactions • Properties vary across a period because the # of valence electrons increases from left to right • Elements in a group have similar properties because they have the same # of valence el ...
PT objectives
... including highly reactive metals, less reactive metals, highly reactive nonmetals, less reactive non-metals, and some almost completely non-reactive gases. Students understand that substances are often placed in categories together if they react in similar ways. Examples of this in the periodic tabl ...
... including highly reactive metals, less reactive metals, highly reactive nonmetals, less reactive non-metals, and some almost completely non-reactive gases. Students understand that substances are often placed in categories together if they react in similar ways. Examples of this in the periodic tabl ...
AP Chem Test 5-7 Practice Exam - mvhs
... 3. Name the element corresponding to each characteristic below. the element with the electron configuration 1s22s22p63s23p3 the alkaline earth element with the smallest atomic radius the element with the largest ionization energy in Group 5A the element whose 2+ ion has the configuration [Kr] 4d5 th ...
... 3. Name the element corresponding to each characteristic below. the element with the electron configuration 1s22s22p63s23p3 the alkaline earth element with the smallest atomic radius the element with the largest ionization energy in Group 5A the element whose 2+ ion has the configuration [Kr] 4d5 th ...
chapter 19 - Celina City Schools
... A) Quarks - particles of matter that makeup protons and neutrons 1) Six (6) different types of quarks a) Three (3) makeup the ____________ and three (3) makeup the ____________. 2) Finding quarks… a) ____________ - a machine designed to generate enough energy to study quarks Located in Batavia, IL ...
... A) Quarks - particles of matter that makeup protons and neutrons 1) Six (6) different types of quarks a) Three (3) makeup the ____________ and three (3) makeup the ____________. 2) Finding quarks… a) ____________ - a machine designed to generate enough energy to study quarks Located in Batavia, IL ...
CHAPTER 3, ATOMS: THE BUILDING BLOCKS OF MATTER
... ! Atoms are divisible. ! The electron has a very large charge-to-mass ratio Discovery of the Charge of an Electron: 1909 by Robert A. Millikan via oil drop experiment Further conclusions ! Because atoms are electrically neutral, they must contain a positive charge to balance the negative electrons. ...
... ! Atoms are divisible. ! The electron has a very large charge-to-mass ratio Discovery of the Charge of an Electron: 1909 by Robert A. Millikan via oil drop experiment Further conclusions ! Because atoms are electrically neutral, they must contain a positive charge to balance the negative electrons. ...
Unit 1 Test Study Guide KEY
... In a solid, the particles can vibrate but they cannot move from one place to another. In a liquid the force of attraction between the particles is weaker than it is in the solid. It is still strong enough that the particles are held close to each other but they are now free to move. A gas takes up a ...
... In a solid, the particles can vibrate but they cannot move from one place to another. In a liquid the force of attraction between the particles is weaker than it is in the solid. It is still strong enough that the particles are held close to each other but they are now free to move. A gas takes up a ...
ATOMS / ATOMIC STRUCTURE NOTES Atom
... Atom-the smallest possible piece of an element Proton-the positively charged particle found in the nucleus of an atom Neutron-the neutral (no charge) particle found in the nucleus of an atom Electron- the negatively charged particle found on the outside of the nucleus of an atom Nucleus-the dense co ...
... Atom-the smallest possible piece of an element Proton-the positively charged particle found in the nucleus of an atom Neutron-the neutral (no charge) particle found in the nucleus of an atom Electron- the negatively charged particle found on the outside of the nucleus of an atom Nucleus-the dense co ...
Chapter Review Answers
... Choose the answer that best completes each of the following sentences. Write the letter for that answer on the line to the left of each question. _______9. Each energy level of an atom has a maximum number of _____ it can hold. a. neutrons c. protons b. quarks d. electrons _______10. Dot diagrams ar ...
... Choose the answer that best completes each of the following sentences. Write the letter for that answer on the line to the left of each question. _______9. Each energy level of an atom has a maximum number of _____ it can hold. a. neutrons c. protons b. quarks d. electrons _______10. Dot diagrams ar ...
semester 1 study guide 2015 - slater science
... number of valence electrons, and the same oxidation number o Understand that reactivity increases down in a group of metals and decrease down in a group of nonmetals o Identify main group elements as A groups or as groups 1, 2, 13-18 o Identify alkali metals, alkaline earth metals, halogens, and nob ...
... number of valence electrons, and the same oxidation number o Understand that reactivity increases down in a group of metals and decrease down in a group of nonmetals o Identify main group elements as A groups or as groups 1, 2, 13-18 o Identify alkali metals, alkaline earth metals, halogens, and nob ...
Periodic Trends - Issaquah Connect
... – ½ the distance between the nuclei of two atoms of the same element when the atoms are joined ...
... – ½ the distance between the nuclei of two atoms of the same element when the atoms are joined ...
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 ...
Atoms
... a. Physical and chemical properties of a compound are usually very different from the elements from which it is formed. b. Examples: 2 gases (H & O) combine to form liquid water Na is an explosive metal while Cl is a poisonous gas. These combine to form NaCl which is a white solid that is not poison ...
... a. Physical and chemical properties of a compound are usually very different from the elements from which it is formed. b. Examples: 2 gases (H & O) combine to form liquid water Na is an explosive metal while Cl is a poisonous gas. These combine to form NaCl which is a white solid that is not poison ...
Section 4.3 Notes
... 1. Describe periodic trends in the ionization energy, atomic radius, and electronegativity. 2. Relate the periodic trends to the atomic structures of the elements. 3. Describe periodic trends in ionic size, electron affinity, and melting and boiling points, and relate them to periodic trends in the ...
... 1. Describe periodic trends in the ionization energy, atomic radius, and electronegativity. 2. Relate the periodic trends to the atomic structures of the elements. 3. Describe periodic trends in ionic size, electron affinity, and melting and boiling points, and relate them to periodic trends in the ...
Chemistry - Mr. Card
... electronic cloud – are in constant motion Protons have almost 2000 times as much mass as electrons ...
... electronic cloud – are in constant motion Protons have almost 2000 times as much mass as electrons ...
Atomic Models: Developing the Structure of the Atom
... – Atoms of different elements have different masses – Atoms only combine in small, whole number ratios such as 1:1, 1:2, 2:3 and so on. ...
... – Atoms of different elements have different masses – Atoms only combine in small, whole number ratios such as 1:1, 1:2, 2:3 and so on. ...
chapter2 2012 (no naming)
... • Two or more atoms of the same element (same atomic number) but with different numbers of neutrons and mass numbers • Relationships: • Atomic number = # p+ • Charge = p+ - e• Mass # = p+ + n0 ...
... • Two or more atoms of the same element (same atomic number) but with different numbers of neutrons and mass numbers • Relationships: • Atomic number = # p+ • Charge = p+ - e• Mass # = p+ + n0 ...
Atoms and Molecules
... Atoms are NOT indivisible – they can be broken apart into P+, neutrons, and e-. 2. Atoms can be changed from one element to another, but not by chemical means (chemical reactions). Can do it by nuclear reactions. 3. Atoms of the same element are NOT all exactly alike isotopes ...
... Atoms are NOT indivisible – they can be broken apart into P+, neutrons, and e-. 2. Atoms can be changed from one element to another, but not by chemical means (chemical reactions). Can do it by nuclear reactions. 3. Atoms of the same element are NOT all exactly alike isotopes ...
Unit 4 Test REVIEW
... 30. Atomic mass is a relative scale based on which nuclide? 31. What is the mass number of an atom that has 20 protons, 22 neutrons and 20 electrons? 32. The word atom comes from the Greek word atomos meaning __________________. 33. In the synthesis of sulfur trifluoride, 33.0 g of sulfur combines w ...
... 30. Atomic mass is a relative scale based on which nuclide? 31. What is the mass number of an atom that has 20 protons, 22 neutrons and 20 electrons? 32. The word atom comes from the Greek word atomos meaning __________________. 33. In the synthesis of sulfur trifluoride, 33.0 g of sulfur combines w ...
Chapter 4 Review
... atoms of the same element have the same _____. Know Dalton’s Atomic Theory. An element has an atomic number of 76. What is the number of protons and electrons in a neutral atom of this element? How is the number of neutrons in the nucleus of an atom calculated? ...
... atoms of the same element have the same _____. Know Dalton’s Atomic Theory. An element has an atomic number of 76. What is the number of protons and electrons in a neutral atom of this element? How is the number of neutrons in the nucleus of an atom calculated? ...
Atomic Structure - Peoria Public Schools
... Henri Becquerel: Discovery of radioactivity 1900's Robert Millikan: Charge and mass of the electron Ernest Rutherford: Existence of the nucleus, and its relative size Meitner & Fermi: Sustained nuclear fission Ernest Lawrence: The cyclotron and trans-uranium elements ...
... Henri Becquerel: Discovery of radioactivity 1900's Robert Millikan: Charge and mass of the electron Ernest Rutherford: Existence of the nucleus, and its relative size Meitner & Fermi: Sustained nuclear fission Ernest Lawrence: The cyclotron and trans-uranium elements ...