Question

fill in the missing information:

element name	element symbol
	h
oxygen
mercury
	cu
gold

Explanation:

Step1: Recall element symbols/names

• Calcium (Ca), Hydrogen (H), Oxygen (O), Mercury (Hg), Copper (Cu), Gold (Au).

Step2: Fill each row

• Row 1 (Calcium): Symbol is Ca.
• Row 2 (H): Name is Hydrogen.
• Row 3 (Oxygen): Symbol is O.
• Row 4 (Mercury): Symbol is Hg.
• Row 5 (Cu): Name is Copper.
• Row 6 (Gold): Symbol is Au.

Answer:

element name	element symbol
Hydrogen	H
oxygen	O
mercury	Hg
Copper	Cu
gold	Au