Element Names
What is the element name for He
Helium
All noble gases are non-metals
True
Krypton is the _____ element in the noble gasses group.
What is the atomic number of Xenon?
54
What does the number 36 refer to in Krypton?
Protons/Electrons/Atomic Number
What is the element name for Ne
Neon
Oxygen is used in balloons to make them float
False. Helium makes balloons float.
Noble gasses usually ____ form compounds with other elements.
do not
What is the subscript of Neon?
10
What equation would 2+4 represent for Helium-6?
Mass Number
What is the element name for Kr
Krypton
Neon is used in glowing signs
True
Argon is often used in _____ _____ to prevent the filament from burning.
What is the superscript of Helium?
4
If Ar-38 has 20 neutrons, how many protons/electrons does it have?
18
What is the element name for Ar
Argon
Oxygen is a noble gas
False
Xenon is used in some cars for the _________.
headlights
What is the atomic mass of Radon?
222 u
What is the isotope for Xenon if it has 82 neutrons?
Xe-136
What is the element name for Xe
Xenon
All noble gases have a charge of 1-
False. They have a neutral charge
very heavy
The number of protons + neutrons for Argon
40 (mass number)
20.19