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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
Why is carbon dioxide not found in the periodic table?
Carbon dioxide is a compound composed of carbon and oxygen atoms, so it is not listed as a single element on the periodic table. The periodic table only includes elements, which are substances that cannot be broken down into simpler substances by chemical means.
What is Number 5 on the periodic table?
Number 5 on the periodic table is boron. It is a metalloid element that is commonly used in various industrial applications, including as a component in ceramics and glasses. Boron also plays a role in plant growth and development as an essential micronutrient.
Which is more reactive fluorine oxygen or neon?
Fluorine even combines with argon, krypton, xenon, and radon. Even in dark, cool conditions, fluorine reacts explosively with hydrogen. http://en.wikipedia.org/wiki/Fluorine Fluorine even combines with argon, krypton, xenon, and radon. Even in dark, cool conditions, fluorine reacts explosively with hydrogen. http://en.wikipedia.org/wiki/Fluorine
It is not possible to give a sensible answer to this question because, in terms of the Periodic Table, the atomic radius DECREASES as you go from left to right! So the given reason would act in opposition to reality.
How is uranium used in Germany?
In Germany, uranium is mainly used as fuel in nuclear power plants to generate electricity. The country has a number of nuclear power plants that rely on uranium as the primary fuel source. However, Germany has a plan to phase out nuclear power by 2022 and shift towards renewable energy sources.
About how many elements are in the periodic table of elements?
The current periodic table contains 118 elements, as of April 2010, but many more may still be discovered.
Who was maker on the periodic table?
The person known as the "maker" of the periodic table is Dmitri Mendeleev, a Russian chemist. He is credited with arranging the elements in a systematic way based on their atomic mass and properties, which formed the basis for the modern periodic table.
Indium is commonly used in the production of semiconductors, liquid crystal displays (LCDs), and as a component in certain solders due to its unique electrical and thermal properties. It is also used in the manufacture of specialized mirrors, touch screens, and solar panels.
Elements in the same period on the periodic table are very similar to each other?
Yes, elements in the same period on the periodic table have the same number of electron shells. This results in similar chemical properties among the elements in the same period, as they have comparable electron configurations.
The horizontal rows in a periodic table are called groups?
False; That would be called groups. Periods are horiztonal rows.
Elements of group of 2 are called?
The elements of the second group are called the Alkaline Earth metals.
What does the v mean on the periodic table?
The "v" on the periodic table represents the element vanadium, which is a transitional metal with atomic number 23. It is commonly used in the production of steel and as a catalyst in chemical reactions.
Atoms of which group on the periodic table give off the most energy when forming negative ions?
Group 17, also known as the halogens, tend to give off the most energy when forming negative ions because they have a high electron affinity, meaning they readily accept an electron to achieve a stable electron configuration. This process releases energy in the form of heat. Members of this group include fluorine, chlorine, bromine, iodine, and astatine.
Is a family an example of a primary group?
Yes, a family is an example of a primary group. Primary groups are characterized by close, personal, and intimate relationships among members, like those found within families. These groups are typically small, have face-to-face interactions, and play a significant role in shaping individuals' identity and socialization.
75 element in the periodic table?
The 75th element in the Periodic Table of Elements is called Rhenium (Re) and is pronounced REE-ni-em. It has an atomic mass of 186.21. Rhenium is Transitional Metal and can be found in Period 6 Group 7 on the Periodic Table. Rhenium is one of the rarest metals in the Earth's crust. Some of it's uses include flash lamps for photography and fillaments in in mass spectrographs.
Atomic Number: 75
Atomic Mass: 186.21
Melting Point: 3459 K
Boiling Point: 5869 K
Density: 20.8 grams per cubic centimeter
Phase at Room Temperature: Solid
Element Classification: Transitional Metal
What is less reactive than alkali metals?
Alkali earth metals (e.g. magnesium, calcium) are less reactive than alkali metals as they have two valence electrons which are more tightly bound. transition metals are less reactive as they have filled d orbitals which provide greater stability.
What does abundant mean for the periodic table of elements?
"Abundant" in the periodic table of elements refers to elements that are commonly found in nature or have a high natural occurrence on Earth. These elements are plentiful and easily accessible for various industrial and scientific applications. Examples of abundant elements include carbon, oxygen, and silicon.
What metabolic pathway is anabolic?
anabolic pathway is one that the products are more complicated than reactants.
they usually need energy(ΔG>0)
anabolic pathways are enzymatic and occur in living organism cells and uses energy to construct components of cells such as protein and nucleic acid.
What group include ages 18-40?
The age group that includes individuals aged 18-40 is typically referred to as "young adults" or "young professionals." This group is often characterized by transition into adulthood, establishing careers, and forming long-term relationships. They are considered to be a key demographic for many industries and organizations.
What periodic trends of reactivity occur with the alkali metals?
Alkali metals become more reactive as you move down the group in the periodic table because atomic size increases, making it easier for the outermost electron to be lost. This is due to the decrease in ionization energy and increase in metallic character as you move down the group. Alkali metals react vigorously with water and oxygen, forming metal oxides and hydroxides.
Why does the mass of the elements increase when you go down the periodic table?
The increase in mass down the periodic table is primarily due to the addition of more protons and neutrons in the nucleus of atoms as you move to higher atomic numbers. As you go down the periodic table, atoms have more energy levels and larger atomic sizes, resulting in a greater number of protons and neutrons in the nucleus and consequently increased mass.
What element is pure moisture?
Moisture is water, it is H2O the two hydrogen bind with oxygen forming the moisture. Moisture is a compound not element.
In addition, moisturizer in cosmetic is not water but form of fat that is long chain hydrocarbon. That moisturizer is also compound not element.
The sum of Which two things is the atomic number in an element?
It is not the sum of two things, but only the number of protons found in the nucleus of the atom. The atomic mass is the total number of neutrons and protons in the nucleus.
