BEIJING, July 15 (Reuters) - Prices of London copper dropped on Monday as the dollar firmed, while investors awaited economic data from top metals consumer China for more clues on global demand.

Three-month copper on the London Metal Exchange was down 0.3% at $9,851.50 per metric ton, as of 0141 GMT, after a weekly decline due to high inventories and weak demand in China.

The most-traded August copper contract on the Shanghai Futures Exchange gained 0.8% to 79,870 yuan ($10,997.14) a ton.

U.S. bond futures slipped and the dollar firmed on Monday as investors wagered the attack on U.S. presidential candidate Donald Trump made his victory more likely, while injecting a whole new level of political uncertainty into markets.

A firmer dollar makes the greenback-priced commodity less attractive for buyers using other currencies.

A busy week for data kicks off with Chinese gross domestic product (GDP) on Monday where annual growth is seen slowing slightly to 5.1% in the second quarter. Retail sales and industrial output for June are also due, while China's gathering of top officials runs from July 15-18.

LME aluminium shed 0.1% at $2,479 a ton, nickel added 0.2% at $16,895, zinc dipped 0.1% to $2,941, tin declined 0.6% to $33,500, and lead nudged 0.1% lower to $2,208.

SHFE aluminium was flat at 20,060 yuan a ton, lead climbed 0.6% at 19,650 yuan, nickel advanced 0.8% to 134,760 yuan. Zinc was unchanged at 24,305 yuan, and tin fell 1.2% to 274,800 yuan.

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($1 = 7.2628 Chinese yuan)

(Reporting by Siyi Liu and Colleen Howe; Editing by Sherry Jacob-Phillips)