0
Calcium has the atomic number 20.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoHydrogen
Add your answer:
Earn +20 pts
Which element has atomic number thirteen?
Aluminium is a metal element. atomic number of it is 2.
What is the atomic number of this element of He?
The atomic number of Helium is 2.
What is the atomic number for He?
Helium is a gas element. atomic number of it is 2.
What is the atomic number of this element helium?
The atomic number of helium (He) is 2.
What is the element of a atomic number element?
The atomic number of an Element refers to it's position in The Periodic Table. The first element (Hydrogen - H) has the atomic number 1. The second element (Helium - He) has the atomic number 2. The fifty-second element (Tellurium - Te) has the atomic number 52. And so on.
What is Atomic number 2?
Atomic number 2 is Helium, which has the symbol He
What is the number of neutrons for a specific element equal to?
The average number of neutrons that a specific element has is equivilent to the element's atomic mass minus the that elements atomic number. For example Helium has 2 neutrons because its atomic mass (4) minus the atomic number (2) is 2.
2 He 4.00260 what do they mean?
2 He 4.00260 has several components. The first number, 2, is the atomic number of the element. This equates to the number of protons in the element. The second component is He, which is the atomic symbol of the element. Finally, 4.00260 is the atomic mass of the element. In this case, the element described is helium.
4.002 is the atomic mass of which element?
We can find helium as a non metal element. Atomic number of it is 2.
What is heilum's atomic number?
Helium is a gas element. atomic number of it is 2.
If an element has a mass number of 4 and an atomic number of 2 how many neutrons does the element have?
2
What element has the atomic number of 2?
Helium or He
