1) What is the element in group 2 period 6? a) carbon b) barium c) radium d) oxygen e) neon f) molybdenum 2) What is the element with 7 valence electrons and 3 energy levels? a) chlorine b) sulfur c) sodium d) magnesium 3) What is the noble gas in period 4? a) iodine b) xenon c) bromine d) krypton 4) What is the element with 2 valence electrons and 3 energy levels? a) calcium b) potassium c) magnesium d) sodium 5) What is the element with 1 valence electron in period 6? a) barium b) astatine c) radon d) cesium 6) What is the transition metal in period 5 group 4? a) zirconium b) vanadium c) titanium d) dubnium 7) What is the transition metal in period 4 group 5? a) zirconium b) vanadium c) titanium d) dubnium 8) What is the element in group 13 period 2? a) aluminum b) carbon c) boron d) nitrogen 9) What is the element in period 3 group 15? a) bismuth b) antimony c) arsenic d) phosphorus e) nitrogen 10) What is the element in group 6 period 4? a) chromium b) hafnium c) lead d) selenium 11) What is the element in period 7 group 5? a) technetium b) iodone c) dubnium d) nitrogen 12) What group 1 element is not a metal? a) hydrogen b) lithium c) sodium d) potassium

Groups and Periods on the Periodic Table

аутор
Угради

Табела

Визуелни стил

Поставке

Промени шаблон

Врати аутоматски сачувано: ?