What is a horizontal row in the periodic table called?
What is a horizontal row in the periodic table called?
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. Elements in the periodic table are organized according to their properties.
What term is given to the rows of the periodic table?
period
What are the 2 rows of the periodic table called collectively?
The two rows beneath the main body of the periodic table contain the inner transition metals. The elements in these two rows are also referred to as, respectively, the lanthanide metals and the actinide metals.
What is the difference between a family of elements and elements in the same period?
The vertical columns on the periodic table are called groups or families because of their similar chemical behavior. All the members of a family of elements have the same number of valence electrons and similar chemical properties. The horizontal rows on the periodic table are called periods.
What is Period 6 called?
A period 6 element is an element in the sixth period (row) of the periodic table. It contains 32 elements, beginning at Caesium and ending with Radon. The Lanthanides are part of this period….Atomic characteristics.
| Chemical element | 76 |
|---|---|
| Os | |
| Osmium | |
| Chemical series | Transition metal |
| Electron configuration | [Xe] 4f14 5d6 6s2 |
What are the 10 group elements?
Terms in this set (10)
- Alkali metals. Alkali metals Group 1: very reactive metals which do not occur freely in nature.
- Alkaline Earth Metals. Group 2: next reactive metals, found in earths crust but not in elemental form.
- Transition Elements.
- Lanthanides and Actinides.
- Boron Group.
- Carbon Group.
- Nitrogen Group.
- Oxygen Group.
Why are there 3 columns in subgroup Viiib?
True of alkali metals. There are three columns in Subgroup VIIIB because iron, cobalt, and nickel have similar properties.
What element atomic number is 8?
The Elements, sorted by Atomic Number
| Atomic Number | Symbol | Name |
|---|---|---|
| 6 | C | Carbon |
| 7 | N | Nitrogen |
| 8 | O | Oxygen |
| 9 | F | Fluorine |
Why is Group 8 so unreactive?
Group 8 elements are also known as zero group elements as they have zero valency. The reason for them being inert is that all of their shells are completely filled. Inert gases have ns2 np6 configuration which shows that they have 8 electrons in their valence shell.
What is the trend in reactivity in Group 7?
Reactivity decreases down the group. This is because group 7 elements react by gaining an electron. As you move down the group, the amount of electron shielding increases, meaning that the electron is less attracted to the nucleus.
What does Group 7 have in common?
Elements in group seven have a number of similar properties, most importantly they have low melting and boiling points. This is of course a typical property of non-metals. From the lowest boiling and melting point to the highest, the group in order is fluorine, chlorine, bromine, iodine and astatine.