What are the three categories of the periodic table?

Answer 1

The Periodic Table consists of 7 horizontal rows-Periods and 18 vertical columns-Groups.

Group 1 consists of alkali metals.

Group 2 consists of alkaline earth metals

Groups 3 to 12 consists of transition metals

Groups 13 to 16 consist of post transition elements including metalloids.

Group 17 consists of the Halogens

Group 18 consists of Noble/Inert gases

Answer 2

The three categories of the Periodic Table are metals, nonmetals, and metalloids. Metals are typically shiny and good conductors of heat and electricity, while nonmetals are generally poor conductors and can be gases, liquids, or solids. Metalloids have properties that are intermediate between metals and nonmetals.

Answer 3

1. Metals, nonmetals, and metalloids:

The periodic table tells you where the metallic, nonmetallic, and semimetallic metals are. To the right of the periodic table, starting to the left of boron (element #5, B) you should see a line that looks like a staircase. Elements far to the left of this line are metals, elements to the far right of this line are nonmetals, and elements right around the line on either side are semimetals, or metalloids. To review: Metals are conductors of heat and electricity, malleable, ductile, and generally solid. Nonmetals may be solids, liquids, or gases, and are poor conductors of heat and electricity. When solids, they are brittle, non-lustrous materials. Metalloids are solids at standard conditions, and are semiconductors of electricity, making them handy for use in the electronics field. Metalloids have properties between that of metals and nonmetals, causing them to have the nickname of "semimetals." ----

2. The families of the periodic table:

The periodic table consists of a whole bunch of different families which share similar properties. Families are columns in the periodic table, also referred to as groups. * Alkali metals are group 1. They are highly reactive elements with low melting and boiling points. They are light, soft metals. They tend to form ions with a +1 charge. * Alkaline earth metals are group 2. They are also reactive, but less so than the alkali metals. They are light, soft metals, but stronger and denser than the alkali metals. They tend to form ions with a charge of +2. * Transition metals are in groups 3-12. They are less reactive than the alkali and alkaline earth metals, but vary greatly among themselves in reactivity. Generally, these elements form cations, but the amount of positive charge these elements have depends on what the metals are reacting with. * Lanthanides are the metals in the 4f part of the periodic table. They are generally reactive, shiny metals with various industrial purposes. Like the transition metals, they form cations with varying amounts of charge. * Actinides are metals in the 5f part of the periodic table. Most are radioactive and man-made. Uses of these elements are primarily in the generation of nuclear power or in nuclear explosives. Small amounts of elements such as americium are used in smoke detectors. * Chalcogens are group 16 in the periodic table. Starting with oxygen, these elements are mostly nonmetallic and somewhat electronegative, forming ions with a -2 charge. * Halogens are group 17 in the periodic table. These elements are highly reactive oxidizers, and all form ions with a -1 charge. All are electronegative. All are also extremely dangerous, especially when inhaled. * Noble gases are group 18 in the periodic table. They basically don't react with anything because they have a stable octet. They used to be called the inert gases, but it was found a while back that some can form somewhat unstable compounds with halogens and oxygen. * Hydrogen is element #1 in the periodic table. It is unlike any other element, and is fairly reactive. Depending on what it reacts with, it can either form a +1 ion (hydronium ion, or "proton") or a -1 ion (hydride ion) - generally, the hydronium ion is easier to form than the hydride ion.

Answer 4

The elements on the periodic table are divided in three categories which are metals, non-metals and metalloids.
Metals and nonmetals are two categories that are used to classify the elements in the periodic table. The third is inert gases.

Answer 5

They have an Atomic Mass, atomic number, the symbol, and the name.

Answer 6

Metals, Non-metals, semi-metals (also known as "Metalloids")

Answer 7

Transition metals lanthanoids and actanoids

Answer 8

the three groups in periodic table are the metalic elements,non metalic elements and the third one are metalloids

Answer 9

metals, metalloids and non-metals

Answer 10

Metal,Metalloid,Nonmetal