What is 5.27 × 10–4 written in standard form? 0.00527 0.000527 5,270 52,700

Match the atomic particles with their characteristics. 1. made of two protons and two neutrons neutron 2. similar to an electron; positive charge neutrino 3. orbits nucleus; negative charge positron 4. bundle of energy; zero charge proton 5. found in nucleus; positive charge meson 6. very unstable; +, -, or zero charge gamma 7. found in nucleus; zero charge electron 8. negative particle; negative charge beta 9. atomic energy converted to mass alpha

When an object is heated it contracts. a. true b. false

In a system, when potential energy decreases, then entropy also decreases. true false