What statements below correctly describes plasma

The semi-conductors on the periodic table are classified as

Which statement explains which thermometer is more appropriate to measure the temperature of a liquid at 43.6 degrees celsius a) thermometer a, because it measures temperature more accurately than thermometer b b) thermometer b, because it measures temperature more accurately than thermometer a c) thermometer a, because it measures temperature more precisely than thermometer b d) thermometer b, because it measures temperature more precisely than thermometer a

Which of the following are in a chemical family a. ca, sc, k b. cu, ag, au c. so, ge, sb