the choices are:
A. They increase from left to right and top to bottom.
B. They increase from left to right and bottom to top.
C. They increase from right to left and top to bottom.
D. They increase from right to left and bottom to top.
As you go along the Periodic Table (either down or to the right) the Atomic Mass of the elements increase.
Generally increases down the group or across a period
On the average (with a few exceptions) mass increases, left to right on each row.
atomic mass doesn't follow a definite pattern. that's why Mendeleev's periodic table was rejected..
the atomic masses grow bigger per atom.
hvjvv
The atomic radius decrease, with several exceptions in periods 6 and 5.
As you move across the periodic table from left to right (across a period), the atomic radius of the elements tends to decrease.
Across a period the atomic size decreases. Hence elements in the right side of the periodic table have small size / radii.
The elements on the periodic table are arranged in order of increasing atomic number.
Changes with location in the periodic table and also stays the same as Newtonian mechanicsexplains.
Periods on the periodic table refer to the rows of elements. As the elements progress to the right, the atomic numbers increase, usually in steps of 1.
The periodic table of elements is the arrangement of elements according to atomic number increasing from left to right across rows of the table.
The atomic radius decrease, with several exceptions in periods 6 and 5.
they become more reactive since you are moving from left to right on the Periodic Table, the elements in group 17 are the most reactive.
The atomic number increases by 1 as one go across a row on periodic table. The elements are arranged in order of increasing atomic number.
Atomic number increases by one as we move from left to right in a periodic table.
As you move across the periodic table from left to right (across a period), the atomic radius of the elements tends to decrease.
they become more reactive since you are moving from left to right on the Periodic Table, the elements in group 17 are the most reactive.
Chemical elements are organized in the periodic table of Mendeleev.
Across a period the atomic size decreases. Hence elements in the right side of the periodic table have small size / radii.
The elements on the periodic table are arranged in order of increasing atomic number.
Atomic size increase down the group and decreases across the period.