Na, Mg -- also Al, Si, P, S, Cl, Ar
Elements in the same period of the periodic table have sequentially increasing numbers of protons.
all elements in a period all have the same amount of shells example: all elements in period 1 has only 1 shell all elements in period 2 has 2 shells so the period number is the same as the number of shells in that period
On the Periodic table, horizontal rows are given the technical term "periods", while vertical columns are called "groups". Elements in the same period are similar in that they have the same number of energy levels.
they have the same energy levels
No, on the periodic table of elements a family is a group of elements that are in the same row.Answered by Faustin Obedi
Elements in same period have same shell. The electron enters outermost shell.
the period
Elements in the same period of the periodic table have sequentially increasing numbers of protons.
Period 4 and period 5 of the periodic table have the same number of elements. There are 18 elements in each period. While some elements in period 4 are calcium, iron, and zinc, elements in period 5 are tin, antimony, and iodine.
a family is a column of elements a period is a row of elements
yes
All elements in the same horizontal row of the Periodic Table are in the same period, there are 7 periods.
all elements in a period all have the same amount of shells example: all elements in period 1 has only 1 shell all elements in period 2 has 2 shells so the period number is the same as the number of shells in that period
the period
the period
All elements in the same group have the same number of valence electrons.
On the Periodic table, horizontal rows are given the technical term "periods", while vertical columns are called "groups". Elements in the same period are similar in that they have the same number of energy levels.