What is the base of a column?

What is the base of a column?

Plinth. The plinth is the foot, or the base of the column that rests directly on the stylobate. Plinths differ in design depending on the type of column. Plinths are also used as a platform for different objects such as a pedestal, statue or monument.

How do you remember columns and rows?

The word “brow” has the word “row” in it. A brow (as in eyebrow) runs across the face, the same way as a row. And, the column is the other one!

Are columns up or down?

Columns run vertically, up and down. Most spreadsheet programs mark columns headings with letters. Rows, then, are the opposite of columns and run horizontally. Rows are numbered, not lettered./span>

What are columns called on the periodic table?


What do you call the 18 columns of the periodic table?

The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups. Groups are labeled at the top of each column. In the United States, the labels traditionally were numerals with capital letters./span>

What are the first two columns of the periodic table called?

The columns are called groups or families. Mendeleev made these groups because they have similar chemical formulas (as he arranged the elements according to increasing atomic mass). For example, the first group or family is called the alkali metals./span>

What is another name for a column of elements?

In chemistry, a group (also known as a family) is a column of elements in the periodic table of the chemical elements. There are 18 numbered groups in the periodic table; the f-block columns (between groups 2 and 3) are not numbered.

What is an arrangement of elements in columns?

periodic table. an arrangement of elements in columns, based on a set of properties that repeat from row to row. period. a row in a periodic table of elements. group.

Are group 17 atoms stable?

The atoms of group 17 elements all have 7 electrons in the valence shell (highest energy level). ... This is a stable electronic configuration. In fact, each of these electronic configurations is now the same as a Noble Gas (very unreactive group 18 element).

Which group is very unreactive?

noble gases

What is the most unreactive group?

Group 8A — The Noble or Inert Gases. Group 8A (or VIIIA) of the periodic table are the noble gases or inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The name comes from the fact that these elements are virtually unreactive towards other elements or compounds.

Is argon a noble gas?

Argon--along with helium, neon, xenon, radon, and krypton--belongs to the so-called "noble" gases. Also called inert gases, they have complete outer electron shells and were believed not to react with other elements or compounds./span>