1) What is the atomic number of carbon? a) 12.001 b) 6 c) C 2) What is the symbol for hydrogen? a) 1.008 b) H c) 1 3) What is this element's name? a) 7 b) Nitrogen 4) What is the atomic weight of Oxygen? a) 15.9994 b) O 5) What is the symbol of carbon? a) C b) H 6) How many protons are in Carbon? a) 6 b) 12.011 7) What is the symbol of oxygen? a) O b) N 8) What is the symbol for hydrogen? a) H b) He 9) What is the symbol for sulfur? a) S b) Su 10) What is the atomic weight for calcium? a) C b) Ca 11) Where are the elements located? a) Periodic Table of Elements b) Periodic Table of Elephants

Elements on the Periodic Table practice

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?