FR

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FR

The two-character ISO 3166 country code for FRANCE.
References in periodicals archive ?
FRANCIUM 6 + 18 + ([ - 1 + 14] x 3) + ( [square root of 9] x [21 - 13]) = 87
QUIZ OF THE DAY: 1 Trees; 2 Rutland; 3 PC George Dixon; 4 Francium; 5 Casablanca; 6 Crown green bowls; 7 St Louis; 8 The Pelican; 9 I Should Be So Lucky; 10 Great Yarmouth.
At number 87 in the periodic table, francium is the least stable of the first 103 elements.