Flashcards
Chemistry 1 A
Cards in this deck (18)
- 11. Where is the Nucleus? 2. What is the overall charge of it?1. It is in the middle of the atom
2. It has a positive charge overall - 21. Where are the protons and neutrons? 2. What charge does the proton have? 3. What charge does the neutron have?1. Protons and neutrons are in the nucleus
2. Protons have positive charges
3. Neutrons have no charge they are neutral - 31. Where are the electrons in the atom? 2. What charge do they have?1. The electrons are in the outer shells
2. Electrons have a negative charge - 41. What is the overall charge of an atom?1. An atom is neutral.
- 51. If an atom has 40 protons how many electrons are there?1. 40, Because protons have the same size charge as the electrons, but opposite.
- 61. What is an ion?1. An ion is when electrons have been added or removed which then charges the atom
- 71. What is an element?1. An element is a substance that only contains one type of atom.
- 81. What is the periodic table?1. A table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns.
- 91. How do you shorten the name of an atom?1. An atom can be shortened by using its chemical symbol
- 10Electrons always occupy _____Electrons always occupy shells
- 11The ____ energy levels are always filled ____, these are the ones closest to the nucleusThe lowest energy levels are always filled first, these are the ones closest to the nucleus
- 12Only a certain amount of electrons can fit on shells, 2 can fit on the ____ shell, 8 can fit on the _____ shell, and 8 on the ___ shell.Only a certain amount of electrons can fit om shells, 2 can fit on the first shell, 8 can it on the second shell, and 8 on the third shell
- 13To see how many electrons are on the ___ you have to use the ___ number which is found near the symbol in the _________To see how many electrons are on the shell, you have to use the proton number which is found near the symbol in the periodic table
- 141. What is a compound?1. A thing that is composed of two or more separate elements, and are then chemically bonded
- 15A f___ shows what ___ are in a compoundA formula shows what atoms are in a compound
- 161. What is limestone mainly made up of?1. Limestone is mainly made of calcium carbonate. CaC03
- 171. How is limestone obtained?1. Limestone is quarried out of the ground
- 181. What is limestone used for?1. Limestone is great for
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- GCSE Science (Chemistry) Flashcards on Chemistry 1 A, created by shivamrawal on 18/04/2016.
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- shivamrawal
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