Laboratory 4 Chemicals of Life Part 4. Take home problems Use the following term
ID: 198173 • Letter: L
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Laboratory 4 Chemicals of Life Part 4. Take home problems Use the following terms to answer questions 1 to 14, Some terms may be used more than once. Some terms may not be used at all. a atoms B. molecules C. electrons d. neutrons eprotons .nucleurs g orbitals h. inside i outside J on top of k. negative neutral m. positive covalent bond p. ionic bond 1. Atoms consist of parts called protons, neutrons, and- - 2. Each electron has an electrically charge 3. Each proton has an electrically charge. 4. Each neutron has an electrically 5 and 6. The nucleus of an atom contains 7 and 8. Electrons move around charge and the nucleus in specific regions known as in the nucleus in an atom 9. The atomic number is the number of 10 and 11. The atomic mass is the sum of number of the atom 12. 13. electron acceptor 14. A pair of electrons is shared between two atoms for each and in in atoms are responsible for creating the ionic and covalent bond. forms when one atom acts as an electron donor and another atom acts as an 15. If the atomic number of an element is 6 and the atomic mass is 12.01, how many protons are there in the nucleus? 16. If an element contains 7 electrons, how many electrons wil be contained in the second shell? 17. If an element contains 16 electrons, how many electrons will be contained in the third shell? 18 and 19. Anything below pH 7 is and above pH 7 is . 20. (True/ False) The scale ranges from 1 to 15Explanation / Answer
1) c
2) k
3) m
4) l
5) and 6) d and e
7) and 8) i and g
9) e
10) and 11) d and e
12) c
13) p
14) o
15) 6
16)5 (2s2 2p3)
17)6 (3s2 3p4)
18)acid
19)base
20)false ranges from 1-14
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