answersLogoWhite

0

🧪

Periodic Table

The Periodic Table is a tabular arrangement of the elements in increasing order oftheir atomic numbers, so that elements with similar properties are in the same column. There are 18 columns, called groups, and seven rows, which are called periods, in the modern periodic table. Questions about the Periodic Table: its history and creation, trends, groups/families, and periods are asked in our Periodic Table category.

11,356 Questions

Why is the Aufbau Principle also known as the build-up principle?

The Aufbau Principle is also known as the build-up principle because it describes the process of filling electrons into atomic orbitals starting with the lowest energy orbitals and moving towards higher energy levels. This gradual filling up of electron orbitals reflects the building up of an atom's electronic configuration.

What side of the periodic table are the least reactive?

The noble gases are the least reactive elements on the periodic table. They have a full outer electron shell, making them stable and unlikely to participate in chemical reactions.

What is the latin name for radium?

Radium has no Latin name as it was unknown to the Romans. The name "Radium" is a synthetic Latin style name made up by its discover: Marie Curie.

Why are elements in groups 1 and 7 mostly used in the form of compounds?

Elements in groups 1 and 7 are highly reactive due to their tendency to gain or lose electrons to achieve a stable electron configuration. This reactivity makes them form compounds with other elements to become more stable. Group 1 elements readily lose an electron to form a +1 ion, while group 7 elements gain an electron to form a -1 ion, both of which allow them to bond with other elements to form compounds.

When will silver be removed from the periodic table of elements?

Silver will not be removed from the periodic table of elements as it is a naturally occurring element with atomic number 47. The periodic table is a comprehensive chart that organizes all known elements based on their properties and atomic structure.

What is the family name of ununoctium?

1. Ununoctium is placed in the group 18 and period 7 of the periodic table of Mendeleev.

2. Ununoctium is a transactinoid chemical element.

What is the repeating pattern of elements of their properties called?

The repeating pattern of elements and their properties in the periodic table is called periodicity. This refers to the predictable trends in properties such as atomic size, ionization energy, and electronegativity as you move across a period or down a group in the table.

Why is Mendeleev called the father of the modern periodic table and not Meyer or both?

The two tables were virtually identical. However, because he drafted his table earlier in 1869 and because his table included "blanks" for yet-to-be-discovered elements to fit, Mendeleev is given the major recognition for the organization of the elements.

What naturally occurring element has the highest melting point of all metals?

Tungsten has the highest melting point of all metals at 3,422 degrees Celsius.

Why does magnesium have a higher third ionisation energy than aluminium?

Because aluminum has 3 electrons in its valence shell and when you get to the 3rd ionization energy it has an empty valence shell with a configuration as the noble gas Neon. Aluminum wants to stay at this state and will take a lot of energy to loose another electron from next energy level.

What is the atomic number of the lightest element?

The atomic number of the lightest element is 1, which corresponds to hydrogen.

What metals are the least stable?

Mg, magnesium always is forming magnesium oxide as an outer shell, this is why when you sand it it often becomes more lustrous. Same goes for aluminium and iron forms rust when mixed with water however this is more gradual than an oxide layer, the iron hydroxide layer is clearly more visible. However, they all appear quite stable depending on what you mean by "least stable".

Are group one or group two more reactive?

Group one elements are generally more reactive than group two elements. This is because group one elements have one electron in their outermost shell, making them more willing to react and form compounds in order to achieve a stable electron configuration. Group two elements have two electrons in their outermost shell, which makes them less reactive than group one elements.

What row of the periodic table contains elements with 3p electrons?

The third row of the periodic table contains elements with 3p electrons. Some examples of elements in this row are phosphorus, sulfur, and chlorine.

Why does metallic nature increases down the group?

Metallic nature increases down a group because as you move down, the number of electron shells increases, leading to the outer electrons being further away from the nucleus. This results in greater atomic size and shielding of the outer electrons from the attractive force of the nucleus, decreasing the effective nuclear charge experienced by the outer electrons, making it easier for them to be lost and exhibit metallic characteristics.

What are things that zigzag?

Lightning bolts, stitching on clothing, a pattern on a zigzag road, and the path of a snake are all examples of things that zigzag.

What is rock on the periodic table?

"Rock" is a broad term and not a specific element listed on the periodic table. Rocks are composed of minerals, which are chemical compounds made up of elements from the periodic table. Examples of elements commonly found in rocks include silicon, oxygen, aluminum, and iron.

Are Adams apples supposed to move left and right in your neck?

No, Adam's apples typically do not move left and right in the neck. The Adam's apple moves up and down when you swallow due to the motion of the larynx. If you are experiencing left and right movement of your Adam's apple, it may be worth consulting a healthcare professional for evaluation.

What 20 elements from the periodic table are used in everyday life?

Some common elements from the periodic table used in everyday life include:

  • Oxygen: essential for breathing
  • Carbon: found in organic molecules like proteins and sugars
  • Iron: used in construction and in our blood
  • Sodium: found in table salt and important for nerve function

What is protonin?

nothing but protein ....written in correctly....

When the three elements se te and br ara arranged in order of increasing atomic radius?

The atomic radii of elements follow a general trend: As you move down a group on the periodic table, atomic radius generally increases. Among the three elements mentioned, Se would have the largest atomic radius, followed by Te, with Br having the smallest atomic radius.

What do the elements in column 18 of the periodic table have in common?

The elements in column 18 of the periodic table, also known as the noble gases, all have a full outer electron shell, making them stable and unreactive. This is because their outer shell is filled with electrons, so they do not typically form chemical bonds with other elements.

What are all the periodic table families called?

A family is a vertical column in the periodic table. Elements in a family all share similar characteristics, whether they be physical or chemical. There are 18 family (or group) columns in the periodic table.