Modern Atomic Theory - hrsbstaff.ednet.ns.ca
... •All elements are composed of atoms. •All atoms of the same element are identical – in particular they have the same mass. •The atoms of one kind of element are different from the atoms of all other elements - in particular the atoms of one element have a different mass than those of other elements. ...
... •All elements are composed of atoms. •All atoms of the same element are identical – in particular they have the same mass. •The atoms of one kind of element are different from the atoms of all other elements - in particular the atoms of one element have a different mass than those of other elements. ...
Proton Positively charged subatomic (smaller than an atom) particle
... atom) particle found orbiting the nucleus. Atomic Number- Represents the number of protons, which determines the element type. ...
... atom) particle found orbiting the nucleus. Atomic Number- Represents the number of protons, which determines the element type. ...
Chapter 2choutline - Madison County Schools
... The electron cloud model states that energy levels are ____________________regions of space around the nucleus in which _______________ are most likely found. The spherical regions where electrons travel may be depicted as ________________ around the nucleus. The space around the _________________of ...
... The electron cloud model states that energy levels are ____________________regions of space around the nucleus in which _______________ are most likely found. The spherical regions where electrons travel may be depicted as ________________ around the nucleus. The space around the _________________of ...
Ch 1.1 ppt
... • Certain chemical properties were repeated regularly. • These properties were related to the sum of the protons and neutrons in an atom. ...
... • Certain chemical properties were repeated regularly. • These properties were related to the sum of the protons and neutrons in an atom. ...
Models of the Atom: A Historical perspective
... His ideas account for the law of conservation of mass (atoms are neither created nor destroyed) and the law of constant composition (elements combine in fixed ratios). ...
... His ideas account for the law of conservation of mass (atoms are neither created nor destroyed) and the law of constant composition (elements combine in fixed ratios). ...
Bohr´s atomic model (1913)
... Electrons orbit around the nucleus (which, as we know now, is formed by protons and neutrons) in different layers. In each layer there is a maximum number of electrons: In the first layer there are 2 electrons at most, 8 in the second layer, 18 in the third layer... In the layer n there are 2n2 elec ...
... Electrons orbit around the nucleus (which, as we know now, is formed by protons and neutrons) in different layers. In each layer there is a maximum number of electrons: In the first layer there are 2 electrons at most, 8 in the second layer, 18 in the third layer... In the layer n there are 2n2 elec ...
PowerPoint 6.2
... – Ernest Rutherford discovered that the atom also has positive particles called protons, that they were contained in a small, dense area in the middle (the nucleus), and that the nucleus accounted for nearly all the weight of an atom. ...
... – Ernest Rutherford discovered that the atom also has positive particles called protons, that they were contained in a small, dense area in the middle (the nucleus), and that the nucleus accounted for nearly all the weight of an atom. ...
6.2 Atomic theory - Lighthouse Christian Academy
... • Ernest Rutherford discovered that the atom also has positive particles called protons, that they were contained in a small, dense area in the middle (the nucleus), and that the nucleus accounted for nearly all the weight of an atom. ...
... • Ernest Rutherford discovered that the atom also has positive particles called protons, that they were contained in a small, dense area in the middle (the nucleus), and that the nucleus accounted for nearly all the weight of an atom. ...
The Basics of Atomic Structure
... So what are isotopes good for? • Dope testing - one of the initial tests to determine if someone has been doping with synthetic testosterone is a test for a high concentration of an isotope that’s not contained within naturally produced testosterone, but within the synthetic testosterone derived f ...
... So what are isotopes good for? • Dope testing - one of the initial tests to determine if someone has been doping with synthetic testosterone is a test for a high concentration of an isotope that’s not contained within naturally produced testosterone, but within the synthetic testosterone derived f ...
Chemistry Notes
... Law of Multiple Proportions • Law of Multiple Proportions - (chemistry) law stating that when two elements can combine to form more than one compound the amounts of one of them that combines with a fixed amount of the other will exhibit a simple ...
... Law of Multiple Proportions • Law of Multiple Proportions - (chemistry) law stating that when two elements can combine to form more than one compound the amounts of one of them that combines with a fixed amount of the other will exhibit a simple ...
atoms
... elements composed of atoms atoms of the same element are alike different atoms can combine in ratios to form compounds chemical reactions can occur when atoms are separated, joined, or rearranged (but atoms are not created nor destroyed) ...
... elements composed of atoms atoms of the same element are alike different atoms can combine in ratios to form compounds chemical reactions can occur when atoms are separated, joined, or rearranged (but atoms are not created nor destroyed) ...
Explain what he discovered and draw a diagram of the cathode
... 1.6 – Ionization Energy Questions 1. What does the ionization energy of an element describe? 2. How does nuclear charge contribute to an element’s ionization energy? 3. What is the trend in ionization energy as you go across a period? Down a group? 4. Why do these trends exist? 5. Sort the following ...
... 1.6 – Ionization Energy Questions 1. What does the ionization energy of an element describe? 2. How does nuclear charge contribute to an element’s ionization energy? 3. What is the trend in ionization energy as you go across a period? Down a group? 4. Why do these trends exist? 5. Sort the following ...
Comprehensive Science 3 Module 4 Practice Test
... 13. What is the relationship between a compound and the elements it is made from? The compound takes on a mixture of properties from the elements The compound takes on the properties of the stronger element The compound may have properties that are very different from those of the elements ...
... 13. What is the relationship between a compound and the elements it is made from? The compound takes on a mixture of properties from the elements The compound takes on the properties of the stronger element The compound may have properties that are very different from those of the elements ...
Review Sheet Filled Out
... Reside in the 99.996% of the atom outside the nucleus Can’t tell where an electron is at any moment in time – the uncertainty principle There’s more – the list could be long! ...
... Reside in the 99.996% of the atom outside the nucleus Can’t tell where an electron is at any moment in time – the uncertainty principle There’s more – the list could be long! ...
5.1 section summary
... solid, indivisible mass. Next, J. J. Thomson discovered the electron and proposed the plum-pudding model in which negatively charged electrons were embedded in a positively charged mass. Bohr proposed that electron move only in specific circular paths, or orbits, around the nucleus. Electrons cannot ...
... solid, indivisible mass. Next, J. J. Thomson discovered the electron and proposed the plum-pudding model in which negatively charged electrons were embedded in a positively charged mass. Bohr proposed that electron move only in specific circular paths, or orbits, around the nucleus. Electrons cannot ...
Study Guide Answer Key
... c. What is Conservation of Mass? In chemical reactions, the mass will stay the same. Mass in neither created or destroyed. ...
... c. What is Conservation of Mass? In chemical reactions, the mass will stay the same. Mass in neither created or destroyed. ...
1 Chapter 4 Atomic Structure 4.1 Defining the Atom Early Models of
... Chapter 4 Atomic Structure 4.1 Defining the Atom Early Models of the Atom An _____________ is the smallest particle of an element that retains it identity in a chemical reaction. The Greek philosopher Democritus (460 B.C. - 370 B.C) was among the first to suggest the existence of atoms. Democritus b ...
... Chapter 4 Atomic Structure 4.1 Defining the Atom Early Models of the Atom An _____________ is the smallest particle of an element that retains it identity in a chemical reaction. The Greek philosopher Democritus (460 B.C. - 370 B.C) was among the first to suggest the existence of atoms. Democritus b ...
Chem. Review Notes
... Think of a football stadium… • as a giant model of a hydrogen atom – football would be nucleus • 1 proton and 1 neutron inside ...
... Think of a football stadium… • as a giant model of a hydrogen atom – football would be nucleus • 1 proton and 1 neutron inside ...
CHEMISTRY NOTES 9.1.1 ATOMS, ELEMENTS, PERIODIC TABLE
... 1. Classify matter according to its atomic structure. 1.1. Review physical and chemical changes of matter using comparisons 1.2. Analyze the relationship and properties of chemical elements taking into account the atomic and mass numbers; relate to the subatomic particle composition. 1.3. Identify a ...
... 1. Classify matter according to its atomic structure. 1.1. Review physical and chemical changes of matter using comparisons 1.2. Analyze the relationship and properties of chemical elements taking into account the atomic and mass numbers; relate to the subatomic particle composition. 1.3. Identify a ...
Chapter 6 Review“The Periodic Table”
... in the periodic table? Smaller because more opposite charges ...
... in the periodic table? Smaller because more opposite charges ...
