Chapter 3 - SchoolRack
... Cathode ray tubes pass electricity through a gas that is contained at a very low pressure. ...
... Cathode ray tubes pass electricity through a gas that is contained at a very low pressure. ...
Science 9 Unit 2
... Atomic Number The atomic number of an atom is the number of protons found in the nucleus and also represents the no. of electrons found in the orbits The Atomic Mass Unit is the total mass of the protons and neutrons in the nucleus ...
... Atomic Number The atomic number of an atom is the number of protons found in the nucleus and also represents the no. of electrons found in the orbits The Atomic Mass Unit is the total mass of the protons and neutrons in the nucleus ...
chapter 4 notes
... ___________________________. (identified by the element name followed by the mass # ) ex. C12, C-_____, B-10, B-_____) 22. ________________ _____________ mass is the weighted - average mass of the mixture of all an atoms isotopes. The average atomic mass is close to the mass of its most abundant iso ...
... ___________________________. (identified by the element name followed by the mass # ) ex. C12, C-_____, B-10, B-_____) 22. ________________ _____________ mass is the weighted - average mass of the mixture of all an atoms isotopes. The average atomic mass is close to the mass of its most abundant iso ...
Physical Science 1
... 1. Using your rules, predict a formula between Li & F and between Li & O 2. Using your rules, choose elements to make four compounds that are not already on the sheet. 3. Explain why MgCl2 is correct and Cl2Mg is incorrect. 4. How is MgCl2 possible and MgLi2 is not? ...
... 1. Using your rules, predict a formula between Li & F and between Li & O 2. Using your rules, choose elements to make four compounds that are not already on the sheet. 3. Explain why MgCl2 is correct and Cl2Mg is incorrect. 4. How is MgCl2 possible and MgLi2 is not? ...
2 - Castle High School
... • When naming an ion of a transition metal that has more than one common ionic charge, the numerical value of the charge is indicated by a: • a. prefix. • b. suffix. • c. Roman numeral following the name. • d. superscript after the name. ...
... • When naming an ion of a transition metal that has more than one common ionic charge, the numerical value of the charge is indicated by a: • a. prefix. • b. suffix. • c. Roman numeral following the name. • d. superscript after the name. ...
Review Guide: Atomic Theory and Structure (Including the mole
... 1. Identify the three subatomic particles: a. proton b. neutron c. electron 2. The proton and neutron are located in the nucleus of the atom. 3. The electrons are located on the energy levels outside the nucleus. 4. Which subatomic particle(s) make up the majority of the mass of an atom? Proton and ...
... 1. Identify the three subatomic particles: a. proton b. neutron c. electron 2. The proton and neutron are located in the nucleus of the atom. 3. The electrons are located on the energy levels outside the nucleus. 4. Which subatomic particle(s) make up the majority of the mass of an atom? Proton and ...
The Atom Power point - 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 ...
16.1 to Lewis dot
... Occurs when 2 or more atoms combine Can be from the same element (O2) or different elements (NaCl) Atoms combine so that they each have a total of 8 valence electrons (full octet) ...
... Occurs when 2 or more atoms combine Can be from the same element (O2) or different elements (NaCl) Atoms combine so that they each have a total of 8 valence electrons (full octet) ...
Chemistry 112
... The e- with the lowest energy are found in the first energy level e- can move from one orbital to another but only if it gains or loses energy The further an e- is away from the nucleus, the more energy it possesses The amount of energy an e- must absorb/release to move from one orbital to another i ...
... The e- with the lowest energy are found in the first energy level e- can move from one orbital to another but only if it gains or loses energy The further an e- is away from the nucleus, the more energy it possesses The amount of energy an e- must absorb/release to move from one orbital to another i ...
Chemistry ppt - Plain Local Schools
... V = length X height X width Ex.: If the length of one side of a cube is 2 cm, what is the volume? V = 2 cm X 2 cm X 2 cm V = 8 cm3 ...
... V = length X height X width Ex.: If the length of one side of a cube is 2 cm, what is the volume? V = 2 cm X 2 cm X 2 cm V = 8 cm3 ...
Using your periodic table (9/30-10/6) File
... • Neils Bohr – Bohr model with orbitals for electrons around the nucleus, like a planetary system ...
... • Neils Bohr – Bohr model with orbitals for electrons around the nucleus, like a planetary system ...
Review Questions 1. How many protons does potassium have? 2
... b. Nuclear forces equalize the charges c. The number of protons and electrons is equal d. The number of protons and neutrons is equal 31. The most common form of hydrogen has a. No neutrons b. 1 neutron c. 2 neutrons d. 3 neutrons 32. The name of the scientist who showed the existence of the nucleus ...
... b. Nuclear forces equalize the charges c. The number of protons and electrons is equal d. The number of protons and neutrons is equal 31. The most common form of hydrogen has a. No neutrons b. 1 neutron c. 2 neutrons d. 3 neutrons 32. The name of the scientist who showed the existence of the nucleus ...
Mass Defect (not in book)
... element. In ordinary chemical reactions, atoms are rearranged; they are not changed into other elements. In nuclear reaction atoms can and do change from one element to another. Obviously, this change requires a change in the nucleus of the atoms involved. This chapter focuses on the changes that th ...
... element. In ordinary chemical reactions, atoms are rearranged; they are not changed into other elements. In nuclear reaction atoms can and do change from one element to another. Obviously, this change requires a change in the nucleus of the atoms involved. This chapter focuses on the changes that th ...
Atomic Concepts
... • Electrons could move between energy levels • absorb energy to go to a higher level • Release energy to drop to a lower level • Ground state- electrons are all in the lowest possible energy level • Excited state- one or more electrons have absorbed energy and moves to a higher energy level • Excite ...
... • Electrons could move between energy levels • absorb energy to go to a higher level • Release energy to drop to a lower level • Ground state- electrons are all in the lowest possible energy level • Excited state- one or more electrons have absorbed energy and moves to a higher energy level • Excite ...
Chemistry: Fall Final Review 08
... 35) What are the temperature conversions from Celsius to Kelvin? °C + 273 = K Chapter 4 – Atomic Structure 36) What was Democritus’ contribution to the atomic structure? He came up with the idea of atoms. 37) Give all of Dalton’s laws. Elements are composed of tiny indivisible particles called atoms ...
... 35) What are the temperature conversions from Celsius to Kelvin? °C + 273 = K Chapter 4 – Atomic Structure 36) What was Democritus’ contribution to the atomic structure? He came up with the idea of atoms. 37) Give all of Dalton’s laws. Elements are composed of tiny indivisible particles called atoms ...
Final Exam Review Answers
... • The subatomic particle that plays the greatest role in determining the physical and chemical properties of an element is the • a. proton. c. electron. • b. neutron. d. photon. ...
... • The subatomic particle that plays the greatest role in determining the physical and chemical properties of an element is the • a. proton. c. electron. • b. neutron. d. photon. ...
Nuclear Particles p. 706
... certain metabolic processes in the body. Irradiation: radioisotopes used to treat food so that it can be stored without refrigeration for a long time. ...
... certain metabolic processes in the body. Irradiation: radioisotopes used to treat food so that it can be stored without refrigeration for a long time. ...
Chapter 4 Atomic Structure
... identical. Atoms of any one element are different from those of any other element. ...
... identical. Atoms of any one element are different from those of any other element. ...
ATOMIC THEORY
... ATOMS CANNOT BE BROKEN DOWN INTO SMALLER PARTICLES. ALL ATOMS OF AN ELEMENT WERE EXACTLY ALIKE AND ATOMS ...
... ATOMS CANNOT BE BROKEN DOWN INTO SMALLER PARTICLES. ALL ATOMS OF AN ELEMENT WERE EXACTLY ALIKE AND ATOMS ...
Isotopes
... • The atomic number and atomic mass are both given on the periodic table. The number neutrons is not. o The mass listed on the periodic table for each element is the average mass of the isotopes. That is why it is not an integer. o When this mass is rounded off, it gives the mass number of the most ...
... • The atomic number and atomic mass are both given on the periodic table. The number neutrons is not. o The mass listed on the periodic table for each element is the average mass of the isotopes. That is why it is not an integer. o When this mass is rounded off, it gives the mass number of the most ...
I CAN write Chemical formulas
... the oxidation numbers and write the oxidation number (without plus or minus) of one element as the subscript of the other element. 3. Reduce the subscripts (number of atoms) to their simplest form, if needed. WHAT IS THE CHEMICAL FORMULA FOR CALCIUM CHLORIDE? ...
... the oxidation numbers and write the oxidation number (without plus or minus) of one element as the subscript of the other element. 3. Reduce the subscripts (number of atoms) to their simplest form, if needed. WHAT IS THE CHEMICAL FORMULA FOR CALCIUM CHLORIDE? ...
Review Molecule: more than one atom, e.g., O2, H2, CO, H2O
... Ions in Section 2.1 and Section 3.5 Neutral: a condition in which positive charges are balanced by the same number of negative charges, no net charge is leftover. In a neutral atom, the number of protons equals the number of electrons. Example: 12C (6 protons balanced by 6 electrons) ...
... Ions in Section 2.1 and Section 3.5 Neutral: a condition in which positive charges are balanced by the same number of negative charges, no net charge is leftover. In a neutral atom, the number of protons equals the number of electrons. Example: 12C (6 protons balanced by 6 electrons) ...
Electrons in Atoms
... energy levels get closer together the farther away they are from nucleus Larger orbits can hold more electrons ...
... energy levels get closer together the farther away they are from nucleus Larger orbits can hold more electrons ...