Helium has atomic number 2. That means the helium atom has 2 protons and two electrons.
The standard atomic weight of helium is 4.002602, or 4.003 rounded to 3 decimal places.
2.
==new answer== The number two means receptivity or duality.
Twice a number means to multiply the number by 2
This means the number to the power of 4. If the number is 2 and it is to the power of 4 this means: 2 x 2 x 2 x 2 = 16
A number's opposite is the negitave of that number... the opposite of 2 is -2, the opposite of 947283 is -947283.
4,008,004 - 4,004,001 = 4003
2 Atomic Number of Helium
2 is the atomic number (or the number of protons) of helium.
Do you mean helium? An inert ("noble") gas, atomic number 2. An alpha particle (as in radioactivity) is a helium nucleus.
The atomic number of Helium is 2.
Helium's atomic number is 2.
The atomic number of helium (He) is 2.
Atomic number 2 is Helium, which has the symbol He
The symbol of Helium is He. Helium's atomic number is 2.
i not concern about that!i need to know the 5 letter code!
Helium has 2 protons and 2 electrons.
The atomic number of Helium is 2 because there are 2 protons and 2 electrons.