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

What are the solid metals in the periodic table?

Some of the solid metals on the periodic table include iron, copper, zinc, silver, gold, and aluminum. These metals have a wide range of uses and properties, such as conductivity, strength, and malleability.

Where are metals located on the periodic table?

On the left all the way up to the line that separates the metals from the metalloids and nonmetals.

What is produced when group 1 elements react with nonmetal elements?

When group 1 elements (such as lithium, sodium, potassium) react with nonmetal elements, they typically form ionic compounds. These compounds consist of a metal cation from the group 1 element and a nonmetal anion, resulting in salts like lithium chloride (LiCl), sodium fluoride (NaF), or potassium iodide (KI).

Who arrange the periodic table of elements?

the place where an element sits on a periodic table is not chosen by anyone. the place where it sits is chosen by it's atomic number or the number of protons it has

eg lithium 3 protons its third

What does astatine do?

The isotope Astatine-211 is used to treat different types of tumors.

these are its uses in detail....

ONE AND ONLY USE(MOST PEOPLE THINK!):-

Astatine is far too rare to have any uses. Some research suggest,s a possible medical use, however. Astatine is similar to the elements above it in Group 17 (VIIA) of the periodic table, especially iodine. One property of iodine is that it tends to collect in the thyroid gland. The thyroid is a gland at the base of the neck that controls many body functions.

Some researchers think that astatine will behave like iodine. If so, it could be used to treat certain diseases of the thyroid, such as thyroid cancer. When swallowed, the astatine would go to the thyroid. There, the radiation it gives off would kill cancer cells in the gland.

Compounds

COMMERCIAL USES:-

There are no known commercial uses for astatine compounds.

Health Effects:-

As a radioactive element, astatine would pose a serious health hazard. However, because it can be produced only artificially and with great difficulty at thathardly anyone would ever be exposed to it.

What elements are liquid at room temperature?

The scientific definition of room temperature, also known as standard temperature and pressure (STP), is 68°F (20°C) at one atmosphere (sea level).

By this definition, bromine and mercury are the only two elements that are liquid at room temperature.

Three other elements -- cesium, gallium and rubidium -- become liquid near this mark. Cesium, for example, becomes liquid at 82° (28°C).

It's also believed that francium would be liquid at or just above room temperature, but this highly-unstable radioactive element has yet to be manufactured in a quantity which would confirm this.

How do you tell if a element is a gas solid or liquid at room temperature using the periodic table?

The periodic table is organized so that elements with similar chemical properties are aligned in columns...hence, if you the chemical prop. of one element, then it is reasonable to assume that the other elements in the same column will have similar prop. O3

Which element most readily accepts electrons?

Fluorine is the element that most readily accepts electrons because it has a high electronegativity value, meaning it has a strong attraction for electrons. It only needs one more electron to complete its outer electron shell.

What is the significance of the atomic number of an element?

All elements have protons and electrons. All but hydrogen have neutrons. All elements have isotopes which vary in neutrons but have the same amount of protons as the original element. Different elements never have the same amount of protons so scientists gave these elements their "atomic number" based on the amount of protons the element has. atomic number = amount of protons.

Which elements are not likely to bond with other elements?

Noble gases, such as helium, neon, and argon, are unlikely to bond with other elements due to their stable electronic configuration. These elements have a full valence shell of electrons, making them chemically unreactive.

Is Cl2 an element?

Cl, chlorine is an element, Cl2 is the molecular form of the element. When 'free' chlorine is so reactive that it will react with itself to form diatomic (2 atoms) molecules, but it is still an element.

What is the best periodic element to do a report on?

It depends what your target audience is, what your interest is and very very importantly what you can get the best information on. Perhaps do a report on a common element or well-known element or widely used element or common-on-earth or in biochemical-structures element. Examples would be hydrogen, lithium, calcium, magnesium, gold, silver, iron, nickel, copper, iron, oxygen, nitrogen, phosphorus, sulphur, silicon... If you want to try and explore less-often-in-conversation-mentioned element, try ruthenium, rubidium, barium, cadmium, bismuth, thallium or caesium. If it's a sort of basic-overview report I wouldn't do it on recently artificially synthesised elements like einsteinium, americium, seaborgium or ununoctium.

How many elements are on the periodic table?

The first 92 (through uranium) occur naturally. The others are "transuranics." As of 2009, there are 118 ending with ununoctium.

All together there are 117 elements on the periodic table, 94 of which occur naturally on earth.

According to Wikipedia, there are 117 elements that have been isolated or synthesized, with a gap between element 116 and element 118.

They do also show a wide (extended) format of periodic table with additional elements that have not been discovered, isolated, or synthesized on earth.

See the related links below to see the standard and extended periodic tables.

What are the example of inner transition element?

The inner transitional metals contain 2 main groups, the lanthanide series, and the actinide series (f block elements).

The lanthanide series include the 14 elements that proceed lanthanum (atomic number 57) from atomic numbers 58 to 71. Their electron configuration include the 4f and 5d energy levels. Because of the closeness of those two levels, there is considerable uncertainty in some electron configuration assignments.

The actinide series include the 14 elements that proceed actinium (atomic number 89) from atomic numbers 90 to 103. The electron configurations of the actinides are even more uncertain than the lanthanides because the closeness of the energy levels and because the nuclei are unstable to radioactive decay. Only minute amounts of some elements are obtained because of their instability. All of the actinides are unstable with respect to alpha emission. The later members tend to undergo spontaneous fission, a fact which limits the number of elements possible.

Why do elements in a group have similar properties?

As you pass from left to right and from one line to the next line below it, you are incrreasing the atomic number of each element, one proton at a time. As the protons increase, so do the electrons, and they fill up shells and start new shells. Chemical properties depend mainly on the number of electrons in the outermost shell (for transition state elements it doesn't work exactly by shells, since in the heavier elements it is possible for an electron in an inner shell to nonetheless be farther from the nucleus than some electrons in the outer shell, but that is an added complication). So, elements in the same group have the same number of outer, or valance electrons as they are known.

Which principal energy level has a maximum of three sub levels?

The second principal energy level has a maximum of three sublevels. These sublevels are s, p, and d, with s having 1 orbital, p having 3 orbitals, and d having 5 orbitals.

What are some examples of compounds?

Some examples of compounds are :

  • Water - H2O
  • Table salt - NaCl
  • Carbon dioxide - CO2
  • Potassium hydroxide - KOH
  • Hydrogen cyanide - HCN
  • Methane - CH4
  • Ethyl Alcohol - C2H5OH
  • Sulphuric Acid - H2SO4

What are the symbol and name for eight elements whose symbol is just the first letter of the name?

Boron (B), phosphorus (P), oxygen (O), nitrogen (N), sulfur (S), fluorine (F), carbon (C), hydrogen (H), iodine (I). There's nine for you.

What is the atomic number of osmium?

The atomic symbol of osmium is Os. The Atomic number of Osmium is 76. The atomic weight of Os is 190.23 grams per mole. 99% pure Osmium powder is around $100/gram.

See the Web Links to the left of this answer for a periodic table with more information about this element!

What is the atomic number of iridium?

The atomic number of iridium (Ir) is 77.

The atomic weight of Ir is 192.22 grams per mole.

See the Web Links to the left of this answer for a periodic table with more information about this element!

What is the atomic number of astatine?

The atomic number of astatine (At) is 85.

The atomic weight of At is 210 grams per mole.

See the Web Links to the left of this answer for a periodic table with more information about this element!

What is the atomic number of bismuth?

The atomic number of bismuth (Bi) is 83.

The atomic weight of Bi is 208.98 grams per mole.

See the Web Links to the left of this answer for a periodic table with more information about this element!

What is the atomic number of tin?

The atomic number of tin (Sn) is 50.

The atomic weight of Sn is 118.71 grams per mole.

See the Web Links to the left of this answer for a periodic table with more information about this element!

The atomic number of Tin is 50.