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atoms,bonds & groups
Question | Answer |
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what are the name of the elements in group 7? name 3 of them. | Halogens-Fluorine, Bromine, iodine, Asrtitine, Chlorine. |
give an example and definition of a covalent bond. | h20, chemical bond between atomes with shared pairs of electrions. |
give an example of an ionic bond and the definition. | NaCl-the electrostatic attraction between oppisitley chaerged ions. |
what is the definition of isotopes? | atoms of the same element with the same number of protons but different number of neutrons. |
what does a group 2 element with water produce? write down the word and symbol equation. | e.g magnesium and water→ magnesium hydroxide and hydrogen Mg+H2O→Mg(OH)2+ H2 |