one goes sideways and one goes up and down. its just a way to locate the elements easier
Modern periodic table has 7 periods and 18 groups.
7 periods and 18 groups are there on the modern periodic table.
Periods refer to the rows on the periodic table, which indicate the number of electron shells an element's atoms possess. Families (or groups) refer to the columns on the periodic table, which indicate elements with similar chemical properties due to having the same number of valence electrons.
There are 18 groups in the periodic table that categorize elements based on their similar chemical properties._rows."
The Periodic Table has 7 periods (horizontal rows) and 18 groups. The two groups of 14 elements at the bottom (lanthanides and actinides) are parts of the 6th and 7th periods, between groups 2 and 3, but are placed below to limit the displayed width of the table.
Modern periodic table has 7 periods and 18 groups.
groups
7 periods and 18 groups are there on the modern periodic table.
The columns are called groups and rows are called periods. There are 18 groups and 7 periods.
7 periods and 18 groups are there on the modern periodic table.
7The periodic table has 7 periods and 18 groups.
7The Periodic Table has 7 periods and 18 groups.
Periods refer to the rows on the periodic table, which indicate the number of electron shells an element's atoms possess. Families (or groups) refer to the columns on the periodic table, which indicate elements with similar chemical properties due to having the same number of valence electrons.
periodic table is classified into groups and periods.There are 18 groups and 7 periods in periodic table.
False; That would be called groups. Periods are horiztonal rows.
There are 18 groups in the periodic table that categorize elements based on their similar chemical properties._rows."
Groups are the vertical columns. Periods are the horizontal rows in the periodic table.