Quick Answer: What Do The Horizontal Rows On The Periodic Table Indicate?

What do the horizontal rows on the periodic table represent?

group: A vertical column in the periodic table, which signifies the number of valence shell electrons in an element’s atom.

period: A horizontal row in the periodic table, which signifies the total number of electron shells in an element’s atom..

What are the rows in the periodic table called?

The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups.

Which has larger atomic radius K 19 or CA 20?

Answer: Potassium ( k ) – > atomic number 19 has larger atomic radii.

What are the elements you notice in the structure?

Answer. The elements are Hydrogen, helium and lithium . That element’s atomic number on the periodic table is the number of protons in the nuclei of its atoms.

What do the rows of the periodic table indicate?

The rows on the periodic table are called periods. All the elements in a period have valence electrons in the same shell. The number of valence electrons increases from left to right in the period. When the shell is full, a new row is started and the process repeats.

What is the difference between rows and columns in the periodic table?

The atomic number of each element is written above the symbol. A period is a horizontal row of the periodic table. There are seven periods in the periodic table, with each one beginning at the far left. … A group is a vertical column of the periodic table, based on the organization of the outer shell electrons.

Which are transition metals?

The 38 elements in groups 3 through 12 of the periodic table are called “transition metals”. … These elements are iron, cobalt, and nickel, and they are the only elements known to produce a magnetic field. The Transition Metals are: Scandium. Titanium.

How are the periods or horizontal rows on a periodic table ordered?

The chemical elements are arranged in order of increasing atomic number. The horizontal rows are called periods and the vertical columns are called groups. … This is because they have the same number of outer electrons and the same valency. An example of a group in the periodic table is the alkali metal group.

How many rows are there in the modern periodic table?

sevenThe 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.

How many groups are in the periodic table?

18The s-, p-, and d-block elements of the periodic table are arranged into 18 numbered columns, or groups. The elements in each group have the same number of valence electrons. As a result, elements in the same group often display similar properties and reactivity.

What are three properties of metals?

Properties of metalshigh melting points.good conductors of electricity.good conductors of heat.high density.malleable.ductile.

What does each row across have in common in the periodic table?

In the periodic table, elements have something in common if they are in the same row. Every element in the top row (the first period) has one orbital for its electrons. All of the elements in the second row (the second period) have two orbitals for their electrons. It goes down the periodic table like that.

How many horizontal rows are there in the modern periodic table and what are they called?

7 horizontal rowsThere are 7 horizontal rows in the modern periodic table. They are called periods.

What three families are found in the center of the periodic table?

1. Metals 2. Metalloids 3. Nonmetals Question 6: Using the Periodic Table (5 points) a.