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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

What does a lilac flame indicate?

A lilac flame is often associated with spiritual transformation, renewal, and inner growth. It can also symbolize intuition, psychic abilities, and connecting with higher consciousness.

Elements in Group 1 become more stable by what an electron?

Elements in group two become more stable as they all have complete electron shell.They do not have valence electrons and hence they are less reactive.Some of the elements of group 2 are Barium,Magnesium and Calcium

How many table sppons in 125g?

There are approximately 8.45 tablespoons in 125g.

What substance does Benedict's solution test for?

Benedict's reagent is used as a test for the presence of all monosaccharides, and generally also reducing sugars. These include glucose, galactose, mannose, lactose and maltose. Even more generally, Benedict's test will detect the presence of aldehydes (except aromatic ones), and alpha-hydroxy-ketones, including those that occur in certain ketoses. - wikipedia

Which element has 5 electrons in the 3d sublevel?

B. 1s22s22p63s23p64s23d5

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Chromium: [Ar]1s22s22p63s23p63d54s1

Manganese: [Ar]1s22s22p63s23p63d54s2

In the periodic table what period is gold in?

Next to Mercury - but find Copper - number 29 and then go vertically down - below Copper is silver and below that is Gold.

Is the burning of petrol in cars an example of complete combustion or incomplete combustion Explain?

The burning of petrol in cars is typically an example of complete combustion where petrol (hydrocarbon) reacts with oxygen to produce carbon dioxide and water. However, in some cases, incomplete combustion can occur, leading to the production of carbon monoxide, particulate matter, and unburnt hydrocarbons due to insufficient oxygen supply or improper engine functioning.

What planets are named after elements on the periodic table?

Mercury from both the planet and the Roman god; Uranium is named after the planet Uranus and Plutonium after the (former) planet Pluto; Neptunium, after the planet Neptune. Tellurium, element 52, gets its name from the Latin "tellus" meaning Earth. Not planets, but element 2, Helium is named from the Greek helios, Sun, and Selenium from the Greek selene, Moon.

Which group of elements wants to give away 2 electrons?

Group 2 elements, also known as the alkaline earth metals, typically want to give away 2 electrons to achieve a stable electron configuration. Examples include beryllium (Be), magnesium (Mg), and calcium (Ca).

How does a liquid change to a solid?

When a liquid changes to a solid, it undergoes a process called solidification or freezing. This occurs when the temperature of the liquid is lowered to the point where the kinetic energy of the particles decreases, causing them to come together and form a more ordered structure, resulting in a solid state.

Is einsteinium metal nonmetal or metalloid?

Einsteinium is a synthetic element (Es) with atomic number 99. It is the seventh transuranic element, and a metallicactinide with +3 oxidation state.

What makes incomplete combustion more dangerous than complete combustion?

Incomplete combustion involves the generation of carbon monoxide in addition to carbon dioxide and water generated in complete combustion. Carbon monoxide is highly toxic. While carbon dioxide is produced by the body itself and can only kill if at a very high concentration (7% to 10% of air by volume) or by depriving the victim of oxygen for prolonged periods of time, carbon monoxide is not a physiological gas and can kill at low concentrations (0.32% of air by volume) and in a relatively short amount of time (less than 30 minutes). The toxicity of carbon monoxide is believed to be involved in compromising the ability of hemoglobin and myoglobin to transfer and store oxygen and disabling cellular respiration through blocking cytochrome oxidase.

What is the electronic structure of group 1 elements?

Group 1 elements have one electron in their outermost energy level, giving them an electronic configuration of ns1, where n represents the energy level. For example, lithium has an electronic structure of 1s2 2s1, sodium has an electronic structure of 1s2 2s2 2p6 3s1, and potassium has an electronic structure of 1s2 2s2 2p6 3s2 3p6 4s1.

Mention the General electronic configuration of nitrogen group elements?

The general electronic configuration of nitrogen group elements is ns2np3, where "n" represents the valence shell. Each element in this group has 5 valence electrons, with 2 in the s orbital and 3 in the p orbital. This configuration gives these elements similar chemical properties, such as the tendency to form covalent bonds.

Which element on the periodic table is used in batteries?

There are multiple elements used in modern batteries because different batteries are made with different elements. Many of them are made with zinc and silver, while lithium ion batteries use lithium.

What is a 11 letter word made from the periodic table?

LuBrICaTiON is a 11 letter word that comes from the periodic table

What are the symbols for the elements in the periodic table?

If you look at the periodic table (go to webelements.com to see one if you dont have one) the symbol is the letter or two in the middle of each square. For example, the symbol for Hydrogen is "H", the symbol for Potassium is "K", the symbol for neon is "Ne" & The symbol for Carbon is "C". The symbol is always one or two letters, except for the last few elements, which for now have 3, until they get real names.

Write a balanced equation when Zinc 64 undergoes beta decay?

In beta decay, we see one of two things happening. In one case, a proton in an atomic nucleus is converted into a neutron (beta minus decay) and a new element is formed with the ejection of an electron and an antineutrino. In the second case, a neutron in an atomic nucleus is converted into a proton (beta plus decay) and a new element is formed with the ejection of a positron and a nuetrino. If we were to write the formulae for these reactions we'd have to "generalize" them since we won't specify an element. But we can just pick two examples and post them. We see that carbon-14 undergoes beta minus decay to become nitrogen-14 in this equation: 614C => 714N + e- + ve The carbon-14 nucleus has a neutron within it change into a proton Then we see both a beta minus particle, an electron with high kinetic energy, and an antineutrino ejected from the nucleus. When sodium-22 undergoes beta plus decay to become neon-22, it looks like this equation: 1122Na => 1022Ne + e+ + ve The sodium-22 nucleus has a proton within it change into a neutron. We'll then see a beta plus particle, a positron (an antielectron) with high kinetic energy, and a neutrino ejected from the nucleus. That's the long and short of it. Use the link below to learn more about beta decay. It will lead you to, "What is beta decay?" here on WikiAnswers, and it has been answered.

What is a person born of a certain family or group called?

A person born into a certain family or group is usually referred to as a member or offspring of that family or group.

Who was the first time to organize the elements on the periodic table?

In 1869, a Russian chemist named Dmitri Mendeleev came up with a way of organizing the elements.and arranged them in ascending atomic number

Which best describes trends in electronegativity on the periodic table?

Electronegativity generally increases from left to right across a period and decreases from top to bottom down a group on the periodic table. This means that elements towards the top right of the table have higher electronegativity values compared to elements towards the bottom left.