Chemistry

What actinide was once used to power pacemaker batteries, but has since been replaced?

More Questions from Chemistry
Which of the following ionic solids would you expect to have the highest lattice energy?
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What is the symbol used on the periodic table for the element Aluminum?
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What orbits the nucleus of an atom?
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What word is used to describe crops and foodstuffs grown without chemicals?
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The temperature at which gas becomes liquid is considered what?
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Which chemical, also used in thermometers, was involved in early photo development?
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What symbol appears on the periodic table for the element with the atomic number 70?
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What is formed when metals are blended with other metals?
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