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What two elements are in hydrogen?
There is only one element in hydrogen it's hydrogen. It's the first element in the periodic table of elements.
What elements belong to the first period?
There are two elements in the first period, hydrogen and helium.
What were the first elements that were found in the periodic table?
The first elements in the periodic table are hydrogen, helium, lithium, beryllium, boron.
What're the first two elements in the periodic table of elements?
Hydrogen is the first and helium is the second.
What does the H represent in the table of elements?
H is the symbol for hydrogen. The first of the elements.
Who discovered calcuim?
Calcium was used thousands of years ago. No one knows who first discovered it. Source: http://www.chemistryexplained.com/elements/A-C/Calcium.html
What were the first two elements Was H and HE the first two?
You are correct! According to our current understanding of the Big Bang theory, the first elements formed were hydrogen, deuterium (heavy hydrogen) and helium.
What is the first element after hydrogen that which has a neutron?
Helium. All elements have neutrons except hydrogen.
How do you use the word hydrogen in a sentence?
Hydrogen is the first element on the periodic table of elements. Hydrogen is also a gas.
Which elements have their first shell filled?
All apart from Hydrogen.
How many elements is in the first column of the periodic table?
hydrogen
How many shells does hydrogen have?
All elements in the first period have 1 shell. That's hydrogen and helium.
