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What is each horizontal row of the periodic table called?
vertically they're called groups and horizontally periods
How does atomic radius increase or decrease horizontally or vertically across the periodic table?
Across a period (horizontal), atomic radius decreases due to increasing nuclear charge pulling electrons closer. Down a group (vertical), atomic radius increases due to the addition of new energy levels further from the nucleus.
What period of Maya civilization wer there hieroglyphics developed?
I don't think the Mayans ever used them. I think that they used another language very similar to hieroglyphics.
What is group 17 period 5 on the periodic table?
Group 17 in period 5 of the periodic table corresponds to the halogens. This group includes elements such as fluorine, chlorine, bromine, iodine, and astatine. Halogens are highly reactive nonmetals that have seven valence electrons.
What periods are in the lanthanides and actinides?
The lanthanides are in period 6, the actinides in the 7th period. Periods are numbered vertically (down from the top) but run across the Periodic Table in rows. The columns, sometimes called "groups", are numbered horizontally from left to right but actually run from top to bottom. The lanthanides and actinides are all in column 3, but, because they take up so much room in the periodic table, are placed below it.,
In what period are lanthanides and actinides?
The lanthanides are in period 6, the actinides in the 7th period. Periods are numbered vertically (down from the top) but run across the Periodic Table in rows. The columns, sometimes called "groups", are numbered horizontally from left to right but actually run from top to bottom. The lanthanides and actinides are all in column 3, but, because they take up so much room in the periodic table, are placed below it.,
What is the difference between a period and a group in the periodic table?
Groups run vertically downwards and periods run horizontally from left to right. The group number of an element usually tells the number of valence electrons (free electrons) in its atom and the period number tells the number of shells an atom possesses e.g. elements of group 3 will have 3 shells in total. Hope this helps :)
How did ghosts appear and disappear on the London stage'?
That depends on what period you are referring to. In Shakespeare's day they rose from a trap door in the floor of the stage. Much later, a devise called a Corsican Trap, from the play The Corsican Brothers combined a trap door with a huge treadmill that allowed the ghost to rise vertically and float horizontally at the same time.
What periods are the lanthanides and actinides?
The lanthanides are in period 6, the actinides in the 7th period. Periods are numbered vertically (down from the top) but run across the Periodic Table in rows. The columns, sometimes called "groups", are numbered horizontally from left to right but actually run from top to bottom. The lanthanides and actinides are all in column 3, but, because they take up so much room in the periodic table, are placed below it.,
What are the factors on which the time period of simple pendulum does not depend?
The time of a period doesn't depend on the mass of the Bob(that'll be a mass spring system) It also doesn't depend on Friction..
How does the period of a simple pendulum depend on mass gravitational field strength length?
The period of a simple pendulum does not depend on the mass of the pendulum bob. The period does depend on the strength of the gravitational field (acceleration due to gravity) and on the length of the pendulum. A longer length will result in a longer period, while a stronger gravitational field will result in a shorter period.
How do you find hown many shells are in anatom?
refer to a periodic able and find out which element your are looking for and see what period is it in (horizontally)
