The energy sublevel (s, p, d ,f) is always the same.
whatdo element in 4th period have in common
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.
The element hydrogen is common in acids and bases
i dont know i was waiting for u to tell me.....
Presumably because atomic number is the fundamental characteristic for organizing the periodic table itself. Every element in the interior of a period of the periodic table has an atomic number greater by 1 than its neighbor to the left and less by 1 than its neighbor to the right; every element (except hydrogen) at the left end of a periodic table period has an atomic number greater by one than the rightmost member of the preceding period; and every element at the right end of a periodic table periodic has an atomic number less by 1 than the leftmost element in the succeeding period, if such a succeeding period exists.
whatdo element in 4th period have in common
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.
The number of electrons in its valence shell
The element hydrogen is common in acids and bases
Least reactive
i dont know i was waiting for u to tell me.....
Presumably because atomic number is the fundamental characteristic for organizing the periodic table itself. Every element in the interior of a period of the periodic table has an atomic number greater by 1 than its neighbor to the left and less by 1 than its neighbor to the right; every element (except hydrogen) at the left end of a periodic table period has an atomic number greater by one than the rightmost member of the preceding period; and every element at the right end of a periodic table periodic has an atomic number less by 1 than the leftmost element in the succeeding period, if such a succeeding period exists.
Helium is a period 1 element.
He is in period 1.
Every single atom of sodium has exactly 11 protons in the nucleus.
The element neon is in period 2. Classified as a non-metal. :)
The most common element found in all living things is not, as you would think, oxygen. It is carbon an can be found in every living organism. That is why organic material gives of Carbon and Oxygen as it rots or burns.