ruungji

무기 화학 2020/04/21 - [Knowledge/Chemistry] - 수소 / 1 H / Hydrogen 2020/04/21 - [Knowledge/Chemistry] - 1족 원소 / 알칼리 금속 / alkali metal 2020/04/21 - [Knowledge/Chemistry] - 리튬 / 3 Li / Lithium 2020/04/21 - [Knowledge/Chemistry] - 소듐 / 11 Na / Sodium 2020/04/21 - [Knowledge/Chemistry] - 포타슘 / 19 K / Potassium 2020/04/21 - [Knowledge/Chemistry] - 2족 원소 / 알칼리 토금속 / alkaline earth metal 2020/04/22 - [Know..