Answer: 1 Explanation: Hydrogen is the first element in the periodic table so its atomic number is 1. Log in to Reply
Answer: D Explanation: The atomic number of hydrogen is 1, because hydrogen is considered the number #1 element in the periodic table. Hope this helps! Log in to Reply
Answer:
1
Explanation:
Hydrogen is the first element in the periodic table so its atomic number is 1.
Answer:
D
Explanation:
The atomic number of hydrogen is 1, because hydrogen is considered the number #1 element in the periodic table. Hope this helps!