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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

Does energy contain atoms?

Energy itself does not contain atoms. Energy is a property or a characteristic of objects and particles that can be transferred between them. Atoms, on the other hand, are the basic building blocks of matter and contain protons, neutrons, and electrons.

What statement describes the periodic law?

the periodic law states that the repeating chemical and physical properties of elements change periodically with the elements atomic number.




what ever that means (lol)

A is a column in a table and contains categories of information?

A is likely a categorical variable in the table, representing different categories of information. It may contain discrete values that classify the data into distinct groups or labels for easy identification and analysis.

Why do you use copper in drink cans?

As copper is normally nonreactive and has a relatively small atomic build, less of it can break off and form chemical reactions. This allows us to think that if we were to put a different metal like iron common acids in drinks like citric acid(found in citrus fruits like orange, grapefruit and lime) and ascorbic acid.

I know an ion is a element with a charge but don't all elements have a charge?

All elements, including iron, exist when pure in an electrically neutral state. This does not mean that the elements can not contain charged particles, but rather that the number of total negatively and total positively charged particles must be the same in a pure element.

What information does the mass number give?

the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.

What is common between the three states of matter?

The three states of matter - solid, liquid, and gas - are all composed of tiny particles called atoms or molecules. These particles are in constant motion, but their behavior differs in each state with respect to arrangement and energy level. Additionally, the physical properties of matter, like density and volume, can vary depending on its state.

Write step to used a table editor in pagemaker?

To use a table editor in PageMaker, follow these steps:

  1. Click on the "Table" menu in the top toolbar.
  2. Select "Insert Table" to create a table with the desired number of rows and columns.
  3. To edit the table, click inside the table cell to add text, adjust formatting, or resize columns.
  4. Use the table editor toolbar to customize borders, shading, and alignment within the table.

What are the atomicity of the 20 elements of periodic table?

H-2

He-

Li-2

Be-

B-2

C-2 or as diamond

N-2

O-2,3

F-2

Ne-

Na-

Mg-

Al-

Si-

P-

S-8

Cl-2

Ar-

K-

Ca-

Does antimony reacts?

Yes, antimony can react with certain chemicals. For example, it can react with strong acids to form antimony salts, or with oxygen to form antimony oxides. Antimony's reactivity allows it to be used in various industrial applications.

What is helium's position on the periodic table?

In 18th group (zero group), 1st period. It is the first noble gas.

Answer the alpha decay undergo in nuclear equation thallium-230?

In alpha decay, the nucleus emits an alpha particle (helium nucleus) consisting of 2 protons and 2 neutrons. Thallium-230 undergoes alpha decay to produce an alpha particle (helium-4 nucleus) and become lead-226. The balanced nuclear equation for this process is: ([^{230}{81}Tl \rightarrow ^{4}{2}He + ^{226}_{82}Pb]).

Where are the most active elements located on periodic table called?

The most active elements on the periodic table are located in Group 1, also known as the alkali metals. These elements are highly reactive due to their tendency to lose their outermost electron to achieve a stable electron configuration.

Why do fizzy pop weigh more than flat pop?

Fizzy pop weighs more than flat pop because the carbon dioxide gas bubbles in the fizzy pop add to its overall density. When the bubbles escape and the pop goes flat, it loses some of its volume and therefore weighs less.

Which part of the atom contains more than 99 percent of its mass?

The protons and neutrons found in the nucleus are responsible for the majority of the atom mass while the much smaller electrons orbit the nucleus.

What is true about of all the elements in group 2 on the periodic table?

They all have 2 electrons in their outermost shells, with beryllium(Be) having a electronic structure of 2.2, magnesium(Mg) having 2.8.2, calcium(Ca) having 2.8.8.2 and so on. This means that they have similar chemical reactivity.

At the close of 1999 how many more elements have been produced?

In 1999 a research team at the Lawrence Berkeley National Laboratory in Calif. bombarded lead-208 atoms with high-energy krypton-86 ions to create what an analysis showed to be three atoms of element 118 with mass number 293 and a half-life of less than a millisecond.

-Ben Newcombe wrote this

What state is bismoth in at room temperature?

At standard temperature and pressure, with a temperature of 25 C specified, bismuth is a solid. If the "room" is in a hot country and not artificially cooled, the bismuth might well be liquid instead.

What inspired Mendeleev to create his organization for the elements?

Mendeleev, a Russian chemist, organized the periodic table in order of relative atomic mass. He realized that the physical and chemical properties of chemicals were related to their atomic mass, and arranged them in a way so that groups of elements with similar properties fell into vertical columns (groups) with each period's elements having incrementally greater mass than the masses of the elements in the periods above it.

According to Mendeleev, he had a dream about the elements falling into place on a table. His work was partly based on the work of Anton Lavoisier, who discovered the role of oxygenin combustion, and gave the element its modern name.

Do Stronium have unpaired electrons?

No, strontium does not have unpaired electrons. It has an electron configuration of [Kr]5s2, meaning the outermost energy level (valence shell) is completely filled with 2 electrons.