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He is in period 1.
What else can I help you with?
He lightest element in period 2?
Helium is a period 1 element.
The first element in a period is always an active?
That is not true. The first element in a period may be active or inactive, depending on the specific electron configuration of the element. For example, the first element in period 1, hydrogen, is not considered an active element.
Which element in period 4 has the highest electronegativity?
The element in period 4 of the Periodic Table with the highest electronegativity is krypton (2.96). The period 4 element with the lowest electronegativity is potassium (0.82).
What period is the element neon in?
The element neon is in period 2. Classified as a non-metal. :)
If an element is the last element in its period what does this mean?
On the Periodic Table, a Period is one of the horizontal rows. If an element is last in it's period, then it's on the right hand side of the Periodic Table. There is an inert gas at the end of every Period.
What is the period for the element calcium?
its the 4th period
What period is the element neodymium?
period 6
What element is the first element in the fourth period?
The first element in the fourth period of the periodic table is potassium (K).
What is the characteristic of last element in each period of periodic table?
The last element in each period is a noble element. It is non-reactive.
Why is the period of an element determined by an electron configuration?
The period of an element is determined by electronic configuration.Period is same as the number of energy levels of the element.
What element is in period two group eighteen?
The element in period two group eighteen is neon.
What element is located in group 15 and period 2?
The element phosphorous (P) is located in group 15, period 2.
