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Seven choices, seven questions. Here's the first:

QUESTION 1

SCIENCE

The following atomic numbers, elements and abbreviations are correctly matched except which?

1) Element 6 C Carbon
.....
2) Element 17 Cl Chlorine
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3) Element 20 Ca Calcium
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4) Element 24 Cr Chromium
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5) Element 27 Cb Cobalt
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6) Element 29 Cu Copper
.....
7) Element 48 Cd Cadmium

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