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There are 199 clues with the answer 'HELIUM'
# CLUE
1.
Second-lightest element (6)
2.
Element #2
3.
Most difficult gas to liquefy
4.
Most difficult gas to liquify
5.
It can raise your voice
6.
From the Greek meaning "sun", a gas used for lifting balloons (6)
7.
Mylar filling
8.
He produced buzz around priest (6)
9.
Second lightest element (6)
10.
He needs leadership to suppress independent university?
11.
Balloon-filling gas (6)
12.
Gas that is lighter than air (6)
13.
It was discovered by observing spectral lines from the Sun, so it derives its name from the Greek sun god (6)
14.
Noble gas whose chemical symbol is He. Used in welding and rocket fuel, it is the second, lightest known element.
15.
Element found in blimps
16.
What element has the symbol He?
17.
Element first discovered as an unknown spectral line during observation of a solar eclipse in 1868
18.
Atom of this element created by the reaction in 9 Across
19.
The second most common element in the universe.
20.
What is preferred to hydrogen for lighter-than-air balloons? (6)
21.
A colourless, odourless gas that is used to fill weather balloons and airships (6)
22.
Inert gas with the atomic number 2 (6)
23.
Noble gas [6]
24.
Hi! Take my mule it'll be a gas at the party! (6)
25.
Second-most abundant element in the universe
26.
The lightest noble gas, atomic no. 2 (6)
27.
Chemical element with the atomic number 2 (6)
28.
Light colourless element (6)
29.
Gas in balloons (6)
30.
Sing about biblical character in his element (6)