Erma built the simple motor shown below with a battery, a permanent magnet, a copper coil of wire, and an iron bar. when the motor is turned on, the iron bar and coil spin in a circle. the motor transforms energy into energy. a. thermal; electrical b. mechanical; electrical c. electrical; mechanical d. mechanical; chemical

the correct answer is electrical to mechanical which is C

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6