Periodic Table

The main elements found in fertilizers are nitrogen (N), phosphorus (P), and potassium (K). These elements are essential for plant growth and development. Other elements, such as calcium, magnesium, and sulfur, may also be included in fertilizers to improve soil quality and plant nutrition.

There is no element with the symbol O5 on the periodic table. Oxygen has the symbol O and is located in group 16, period 2 of the periodic table.

The element with the highest atomic volume is francium, which is a highly reactive alkali metal. Francium has the largest atomic radius of all the elements, leading to a high atomic volume.

Iron stands for the element with the chemical symbol Fe on the periodic table.

The chemical symbol for the element iron is Fe, from the latin word for iron "ferrous."

No, Dmitri Mendeleev did not know about protons. The concept of protons was not discovered until later in the 20th century, after Mendeleev's time. Mendeleev is most famous for creating the periodic table of elements.

Actinoids family contain: Ac, Th, Pa, U, Np, Pu, Am, Cm, Bk, Cf, Es, Fm, Md, No, Lw.

The two rows of metals that appear at the bottom of the periodic table are the lanthanides and actinides. They are known as the inner transition metals and are placed below the main body of the periodic table to keep the table size manageable.

At-Astatine Because it is the 85th element of the periodic table. That means that it has 85 protons and 85 electrons

The modern periodic table organizes elements based on their atomic number and similar chemical properties, providing a systematic way to study and understand relationships between elements. It helps scientists predict an element's properties based on its position in the table, enabling them to conduct research more efficiently and make advancements in various fields such as chemistry and materials science.

The number of electron rings in each period of the periodic table corresponds to the period number. For example, in the first period (row), there is only one electron ring; in the second period, there are two electron rings, and so on.

Across the period, the total number of shells remain the same. But, atomic number, i.e., no. of protons and electrons goes on increasing. Protons (positively charged) present in the nucleus exert a nuclear charge towards the electrons (negatively charged) present around the nucleus, and pull the shells toward the nucleus. Hence, when no. of protons increases, nuclear charge also increases and hence it pulls the shells with greater force, and shells get closer to the nucleus. Hence, across the period, atomic size, or the radii go on decreasing.

The atomic size increases within a group in the periodic table due to the addition of energy levels as you move down the group. As you go down a group, each element has one more energy level than the one above it, leading to an increase in atomic size.

Potassium is more reactive in water. This is due to the fact its outer shell is further from the attractive forces of the nucleus and therefore the electron in the outer shell is more easily lost - allowing a reaction to take place.

Zigzag paper is a type of rolling paper that is typically used for rolling cigarettes or other smoking materials. It is characterized by its zigzag pattern along the paper, which can help ensure an even burn when smoking.

erties, known as the periodic law. This arrangement is known as the periodic table, where elements with similar properties are placed in the same column. The periodic table helps to predict an element's properties based on its position.

The noble gases, also known as Group 18 or Group 0 elements, are found in the far right column of the periodic table. They are known for their high stability due to having a full outer electron shell, making them unreactive under normal conditions.

The second group in the periodic table is called the alkaline earth metals. These elements include beryllium, magnesium, calcium, strontium, barium, and radium. They share similar chemical properties such as reactivity and the ability to form ionic compounds with other elements.

Boron has a larger ionization energy than nitrogen. Nitrogen has a smaller atomic size compared to boron, resulting in stronger nuclear attraction for its electrons, making it more difficult to remove an electron from a nitrogen atom than from a boron atom.

Tc (technetium) and Ni (nickel) are both transition metals. They are located in the d-block of the periodic table and have similar metallic properties such as high electrical conductivity and malleability. Technetium and nickel also have multiple oxidation states due to their partially filled d-orbitals.

Lead is commonly used in weights for fishing. It is dense, easily moldable, and can be shaped into various forms to suit different fishing techniques and conditions. Lead sinkers are effective in helping anglers reach desired depths and improve casting distance.

Helium is a nonreactive element that was discovered as a pure element. It is a noble gas with a full outer electron shell, making it stable and unreactive with other elements.

To change a horizontal table to a vertical table, you can transpose the table so that the rows become columns and the columns become rows. This can be done manually by copying the data and rearranging it or by using spreadsheet software that offers a transpose function.