Flashcards
Structure and Bonding
Cards in this deck (23)
- 1what are the charges of the ions in magnesium oxide?Mg+2 0-2
- 2what is the formula of calcium chloride?CaCl2
- 3what are the charges of the ions in calcium chloride?Ca 2+ 2Cl1-
- 4what are compounds?substances in which atoms of two or more elements are chemically combined
- 5what is the aim of an element when bonding chemically?to achieve the electronic structure of a noble gas
- 6If an ion has a charge of -3 what group is it likely to be from?group 5
- 7what forms when atoms form chemical bonds by transferring electrons?ions
- 8the alkali metals react with non metal elements to form what? what charge does the metal have?ionic compounds and the metal ion has a single positive charge
- 9the halogens react with alkali metals to form what? what charge do the halides have?ionic compounds and the halide ions hacve a single negative charge.
- 10how are ionic compounds held together?by strong electrostatic forces of attraction
- 11in what direction do the forces in a ionic compound act?The forces act in all directions in the lattice
- 12what is formed when atoms share electrons?covalent bonds
- 13what is formed when atoms share electrons?covalent bonds
- 14are covalent bonds strong or weak?strong
- 15what are giant structures that are covalently bonded called? name 2 examplesmacromolecules
1)diamond
2)silicon dioxide - 16is HCL a simple or giant structure of covalent bonding?simple
- 17what is the structure of a metal?consists of atoms arranged in a regular pattern.
- 18what is special about the structure of metals?The electrons in the highest energy level are delocalised and so free to move throughout the whole structure. There are strong electrostatic attractions
- 19what is the formula for ammonia?NH3
- 20what is the formula for hydrogen chloride?HCl
- 21what is the formula for methane?CH4
- 22what 2 elements are there is silicon dioxidesilicon and oxygen
- 23what are the charges of the ions in sodium chlorideNA+1 Cl-1
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- gcse chemistry Flashcards on Structure and Bonding, created by Ella Wolf on 15/05/2013.
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- Ella Wolf
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