Because it contains one more valence electron than the third-lowest atomic numbered noble gas, argon. The noble gases are at the ends of periods.
Zinc is in group 12.
6 umm, its 4. Periods are horizontal lines on the periodic table of elements.
The element with mass number 40 and 21 neutrons is Calcium (Ca), which belongs to Group 2 and Period 4 of the periodic table. It has 20 protons (40 - 21 = 20) in its nucleus, making it the 20th element in the periodic table.
Titanium is a transitional metal, placed in the group 4 and period 4 of the periodic table of Mendeleev.
its the 4th period
it is under group 2 and it is considered to be an alkaline-earth metal
The elements Ba (Barium) and Ca (Calcium) belong to the same group on the periodic table, as they both belong to Group 2 (alkaline earth metals). They do not belong to the same period, as Barium is in period 6 and Calcium is in period 4.
Calcium is present in period 4. its group no. is 2
Calcium belongs to period 4 on the periodic table.
The element in period 4 group 2A is calcium (Ca).
Period 4
Calcium (Ca) is the metallic element in period 4 with 20 electrons.
Calcium is present in period 4. its group no. is 2
calcium
The element in Period 4 and Group 2 is Calcium, which has the chemical symbol Ca.
Calcium belongs to the 4th period of the periodic table because it has an atomic number of 20, indicating that it has 20 protons in its nucleus. The periodic table is organized by increasing atomic number, and elements are placed in periods based on the highest energy level of their electrons. For calcium, the outermost electrons occupy the fourth energy level (n=4), which corresponds to its position in the 4th period.
Calcium belongs to group-2.the period no. is 4