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Crossword
Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
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Across: 1. Covalency is greatest between atoms of similar ........................ 3. Covalent bonding is characterized by the sharing of pairs of ........................between two atoms. 6. Metallic bonding is the electromagnetic interaction between ................ electrons (conduction electrons). 7. The sharing of only one pair of electrons between two atoms is called ............ covalent bond (-) 8. Metallic bonds are only formed between two or more ..................... . 9. A ........................... bond is formed between two non-metal-atoms. 10. Positively charged ions are called ......................... 12. In a ............... covalent bond, two atoms are sharing two pairs of valence electrons. 13. Neutral, ionic compounds composed of cations (metal- ions) and anions (non-metal-ions) are called......................................
Down: 1. The ionic bond based of ...................... attraction of metal and nonmetal-ions. 2. A ........... bond is formed between metals and non-metals. 4. .............................. are electrically neutral groups at least two nonmetal-atoms held together by covalent bonds. 5. Two nonmetal-atoms with unequal electronegativity creates a .......................... covalent bond. (e.g in H2O) 8. .................bondings are formed between two or more sorts of metals. 11. Nonmetal atoms form negatively charged ions, socalled..................
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