Download The Atom, Atomic Particles and Periodicity

 Name _____________________________ Class Period 1 2 3 4 5 6 Date _________ Notebook Page_______ The Atom, Atomic Particles and Periodicity https://goo.gl/i1WSCN Atom Basics: In the Beginning 1. Explain Democritus idea of the atom. 2. How was Aristotle’s idea different than Democritus? Click the red link at the bottom of the reading to learn more about “the modern concept of the atom.” Atomic Basics: The Atom 1. Discuss the modern view of atoms. atoms a single particle of an element. 2. How are elements different from one another? Click the red link at the bottom of the reading find out what protons, electrons and neutrons are by clicking “let’s find out.” Atomic Basis: Atomic Structure 1. Complete the table Particle Charge Size Location Protons Neutrons Electrons 2. Which two subatomic particles are similar in size and location? 3. Explain why electrons are considered to weight zero atomic mass units. Click the red link at the bottom of the reading find out about “periodicity.” Atomic Basics: Periodicity 1. What does the word periodicity refer to? 2. How does the atomic number relate to how the elements are arranged on the periodic table? 3. What does an ion have to do with elections? 4. What’s the difference between a cation and an anion? 5. How is an isotope different than an ion? 6. What happens if you subtract or add a proton? TEACHER COPY­Do Not Duplicate Atom Basics: In the Beginning 1. Explain Democritus idea of the atom. The world is composed of very small particles that can’t be separated. Things are different based on the empty space around those atoms. 2. How was Aristotle’s idea different than Democritus? Aristotle believed there there four elements: earth, wind, fire, and water, Democritus didn’t propose any one substance but did propose very small particles that could not be divided more like the modern concept of the atom. 3. Click the red link at the bottom of the reading to learn more about “the modern concept of the atom.” Atomic Basics: The Atom 1. Discuss the modern view of atoms. atoms a single particle of an element. Atoms can be combined to form mixtures and compounds. Atoms are composed of subatomic particles: protons, electrons, and neutrons. 2. How are elements different from one another? The number and arrangement of protons, neutrons, and electrons makes elements different from one another. 3. Click the red link at the bottom of the reading find out what protons, electrons and neutrons are by clicking “let’s find out.” Atomic Basis: Atomic Structure 1. Complete the table Particle Charge Size Location Protons Positive 1 atomic mass ­24 unit (1.67x10​
grams) Nucleus Neutrons Neutral 1 atomic mass unit Nucleus Electrons Negative zero atomic mass units Orbitals in different energy levels around the nucleus. 2. Which two subatomic particles are similar in size and location? Protons and Neutrons 3. Explain why electrons are considered to weight zero atomic mass units. It takes approximately 1830 electrons to make the same mass as a proton. Since the naturally occurring element with the most electrons has just under 100, electrons are considered to have no mass. 4. Click the red link at the bottom of the reading find out about “periodicity.” Atomic Basics: Periodicity 1. What does the word periodicity refer to? repeating patterns on the periodic table. 2. How does the atomic number relate to how the elements are arranged on the periodic table? The atomic number is the same as the number of protons in the atom. When elements are arranged by this number on the periodic table predictions can be made about them. 3. What does an ion have to do with elections? Ions are when there is when the protons different than the number of electrons. There are two types, anions and cations. 4. What’s the difference between a cation and an anion? Anions occur when there are more electrons than protons. Cations occur when there are fewer electrons than protons. 5. How is an isotope different than an ion? Isotopes are when the protons and neutrons are different, ions are when the protons and electrons are different. 6. What happens if you subtract or add a proton? You can’t, it makes a different element. Protons determine the element.