Hoà tận 4,6g Na vào 100g nước
a) Viết pthh
b)Tính natri
c)Tính C% nồng độ dd tham gia

Hydrogen is the most abundant element on the periodic table..hope it .

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.