C1.1 Fundermental Chemistry Revision 0.0 / 5 ? ChemistryAtoms and compoundsGCSEAQA Created by: Lena FrayCreated on: 08-02-16 17:43 What is an atom? is the smallest piece of a substance than can exist, which makes up everything. 1 of 25 What are the 3 components of an atom? Neutron, Proton and Electrons 2 of 25 What charge does an atom have? Nothing it neutral 3 of 25 Where are protons and neutrons? In the nucleus 4 of 25 What is the relative charge of each component? P = +1, N = 0, E= -1 5 of 25 What is the relative mass of each? P = 1, N= 1, E= 0 6 of 25 What does the periodic group tell you about the atom? How many electrons are on the outer shell 7 of 25 What does the periodic period tell you about the atom? The number of shells the atom has. 8 of 25 What does the relative mass number (top) tell you about the atom? The number of protons + neutrons 9 of 25 What does the Proton number (bottom) tell you about the atom? The number of proton which = the number of electrons 10 of 25 How do you work out the number of neutrons in an atom? Minus the proton number from the relative mass number. 11 of 25 What is the max number of electrons in the first shell/energy level? 2 12 of 25 What is the max number of electrons in the all shell/energy level except the first? 8 13 of 25 Why do atoms want a full outer shell? Because they are stable when they have a full outer shell. 14 of 25 What is an element? A collection of one type of atom. 15 of 25 Why are atoms in groups? Because they react in similar ways. 16 of 25 What happens if the atom loses or gains an electron? Gains = negative charge, Lose=Positive charge 17 of 25 What is a compound? 2 or more elements bonded together. 18 of 25 What is a mixture? 2 or more atoms not bonded together. 19 of 25 Why is the mass of an element/compound the same before and after a reaction? Because there is the same amount of elements before and after, they are just ended differently. 20 of 25 What is covalent bonding? When atoms bond together by sharing electrons, to complete there outer shell. 21 of 25 Between what substances does covalent bonding occur? Non-metal elements 22 of 25 What is ionic bonding? When atoms bond together by transferring electrons to fill there outer shell. 23 of 25 Between what substances does ionic bonding occur? A metal and a non metal 24 of 25 What does ionic bonding form? electrically charged ions 25 of 25
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