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Atoms and Molecules
Atoms and Molecules

... Solutions are a chemical combination of a solute in a solvent ...
Atoms and Molecules video guide
Atoms and Molecules video guide

... 13. What does an element’s atomic mass tell about the atoms that make up that ...
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... Mass number: the number of protons and neutrons in the nucleus of an atom. Mass number = protons + neutrons Valence #: The number of outermost electrons in an atom. Periodic Table: An arrangement of elements in order of increasing atomic numbers that demonstrates the periodic patterns that occur amo ...
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Exam 1 Review Questions

... All of the elements that are naturally occurring can be found in their pure form in nature. All of the halogens are gases, and don't react with other elements to form compounds. Alloys have a set ratio of elements. Aluminum is in the 4th period in the Periodic Table. Argon, xenon, krypton, and neon ...
Page 233 - ClassZone
Page 233 - ClassZone

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MrsB-Chemistry
MrsB-Chemistry

... B. A scientist thought that matter could not be divided into smaller pieces because chemical reactions only combine elements. They don’t cause elements to change into other elements. C. Alpha particles were used like bullets, and small, positively charged particles shot out from the center of the at ...
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Quiz: The Atom (Open Notes)

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Elements Unit Test
Elements Unit Test

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Atomic Numbers Practice Problems

... 7. With respect to the three fundamental particles of atoms, which numbers of particles are the same between two isotopes, and which ones are different? ...
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Chem vocab quiz definitons

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Element Blocks Project
Element Blocks Project

... Your assignment is to produce an element block that will have six sides, each having different information about your element. Elements will be assigned randomly. Your teacher will show you how to make the block after you have researched and obtained all the information that will go onto you block. ...
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Study Guide - Honors Chemistry

... one nucleus is broken into multiple (2 in this case) nuclei by force (an alpha particle is used to break it up) one nucleus is broken into multiple (2 in this case) nuclei on its own. No force is needed. one nucleus is transformed into another nucleus by bombarding a particle into it. A particle may ...
Periodic Table Vocabulary Periodic Table – a chart that organizes
Periodic Table Vocabulary Periodic Table – a chart that organizes

... Element – a substance that cannot be broken down into a simpler substance by ordinary chemical means. Elemental Symbol – the single capital letter or capital letter followed by a lower case letter or letters that represents the name of the element. Atom – the smallest unit of an element that has all ...
Exemplar exam question – Chapter 2
Exemplar exam question – Chapter 2

... The first answer is probably worthy of only 1 mark as it does not make clear that isotopes are different atoms of the same element. The second answer would probably score 0. Although the idea of the same element and different number of neutrons is mentioned, the student has not mentioned different a ...
The Atom Chapter 2
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Minerals * Chemistry Review

... • The number of protons plus neutrons gives the atom its atomic mass • All atoms of a given element have the same number of protons ...
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Periodic Table Review Key

... H 3. Which non-metal has the smallest atomic mass? F 4. Which metal has the largest atomic mass? D 5. Which elements are considered good conductors? C,E,D, 6. Which element is considered semi-conductors? G 7. Which elements are considered poor conductors? F, B, A,H 8. Which element is considered met ...
What is the history of chemistry and elements
What is the history of chemistry and elements

... 2. What is the structure of an atom? 3. How are ions formed from atoms? History  2400 year ago Greek philosophers proposed that everything was made of four basic substances – air, water, fire, and earth.  Today chemists know that there are 100+ basic substances, or elements.  Everything on Earth ...
Atomic Structure - hrsbstaff.ednet.ns.ca
Atomic Structure - hrsbstaff.ednet.ns.ca

... So, what’s up with all these isotopes anyway? In nature elements are not made up of atoms that are all exactly the same! Some will be heavier than others, even though they are still the same type of atom. C-12 and C-14 are both Carbon, with all the usual Carbon properties, but the C-14 has two more ...
Introduction to the Periodic Table
Introduction to the Periodic Table

... electrons surrounding the nucleus of an atom. ...
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Seaborgium

Seaborgium is a synthetic element with symbol Sg and atomic number 106. Its most stable isotope 271Sg has a half-life of 1.9 minutes. A more recently discovered isotope 269Sg has a potentially slightly longer half-life (ca. 2.1 min) based on the observation of a single decay. Chemistry experiments with seaborgium have firmly placed it in group 6 as a heavier homologue to tungsten. Seaborgium is the only element named after a person (Glenn T. Seaborg) who was alive at the time the naming was publicized.
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