Periodic Table

The symbol for aluminum trioxide is Al2O3.

Iron is located in the fourth row of the transition metals in the middle of the periodic table because it has 26 protons, which places it in the 4th period. Its location within the transition metals is based on its electron configuration and chemical properties, specifically its ability to form multiple oxidation states.

The element in the fourth period with 3 3d electrons is titanium (element #22).

The periodic table is not expected to change significantly in the next 50 years. The organization and layout of the table are largely based on the atomic structure of elements, which is unlikely to change. Any additions of new elements will be accommodated by extending the table beyond its current layout.

Steam. Notice that it condences (becomes a liquid) when it touches a window or something with a cold surface.

However... it is still steam (gas) when it is in the air

Tables have been used for various purposes throughout history, including dining, work, and social gatherings. The specific use of a table when it was originally made would depend on the cultural and historical context of the time period and region it was made in. For example, ancient tables were often used for communal meals, while tables in workshops were used for crafting or as a surface for tools.

The periodic patterns in the properties of elements are due to their similar electron configurations and atomic structures. The periodic table organizes elements based on increasing atomic number, which leads to recurring patterns in their physical and chemical properties. These patterns occur because elements within the same group have the same number of valence electrons, which governs their behavior.

You can use the VLOOKUP function in Excel to find an answer located in a vertical table. Provide the function with the value you want to look up, the range of cells containing the data, and the column number where the answer is located.

Oxygen has an atomic number of 8, so "six above oxygen" likely refers to the element fluorine (atomic number 9) which is located one place above oxygen in the periodic table. Fluorine has one more proton than oxygen, contributing to differences in its chemical properties.

Noble gases, such as helium, neon, and argon, are not likely to bond with other elements due to their stable electron configuration. They already have a full outer electron shell, making them chemically inert and unreactive.

NO because it is having same elements that are not yet been studied rightly and there positions may change if actual properties are known and seventh period is incomplete and contains ninteen elements (Z=87 to 105).....The elements after actiniun (Z=89 to 91) are called actinides

Since atomic size of alkali metals increase down the group their electron loosing capacity also increases hence they form ions more easily and bonds with non-metals ,So when they dissolve in any polar solvents their tendency to form cations increases down the group so they form weak electrostatic bonds with solvent molecules .Hence their solubility increases down the group

Titanium is considered one of the most resonant metals due to its high strength-to-weight ratio, which allows it to vibrate freely while maintaining its structural integrity. It is often used in musical instruments such as guitars and mandolins to produce clear and vibrant tones.

lead does not react with water or steam

NB on the periodic table stands for niobium. It is a transition metal with the atomic number 41 and is commonly used in superalloys for jet engines and in the production of steel.

Tellurium metal can be dissolved by reacting it with nitric acid or aqua regia, which are strong oxidizing agents. This reaction will result in the formation of soluble tellurium salts. It is important to handle these chemicals with care as they can be hazardous.

When two hydrogen atoms combine, they form a molecule called dihydrogen, which is commonly referred to as hydrogen gas (H2).

You would look for a very reactive atom in group 1, also known as the alkali metals. These elements have one electron in their outermost shell, making them highly reactive as they easily lose this electron to form positive ions. Group 18, on the other hand, consists of the noble gases which are highly stable and unreactive due to having a full outer shell of electrons.

Yes, the periodic table is arranged according to increasing number of protons. This number, known as the atomic number, increases as you move from left to right across a period and from top to bottom down a group on the periodic table.

it has 2 electrons i think you can tell by subtracting both numbers together

The purpose of a periodic inspection is to ensure that a system or equipment is functioning correctly and is in compliance with regulations and standards. It helps to identify any potential issues or hazards early on, allowing for timely repairs or maintenance to prevent accidents or breakdowns.

Yes, there are several books that discuss the science, history, and importance of oxygen. One popular title is "The Oxygen Advantage" by Patrick McKeown, which explores the benefits of proper breathing techniques for overall health and athletic performance.

Among lead, copper, zinc, and aluminum, aluminum has the highest ionization tendency because it requires the least amount of energy to remove an electron due to its low atomic size and high nuclear charge.

Agar is a solid substance. It is a gelatinous material derived from seaweed and is commonly used in microbiology as a culture medium for bacteria and other microorganisms due to its ability to solidify at room temperature.