Periodic Table

Fire is not made up of periodic elements, as fire itself is a chemical reaction rather than a substance. However, the process of combustion typically involves the reaction of a fuel source (such as wood or gas) with oxygen in the air, producing heat and light. The main elements involved in combustion are typically carbon, hydrogen, and oxygen.

Well, darling, the cost of 1 gram of sodium can vary depending on where you buy it, but on average, it's around $0.50. So, if you're feeling fancy and want to add a little sodium pizzazz to your life, go ahead and splurge on that gram. Just don't go sprinkling it everywhere like it's confetti at a party, okay?

To determine the volume of oxygen remaining after the reaction, we first need to determine the stoichiometry of the reaction. The balanced chemical equation for the reaction of hydrogen and oxygen is 2H2 + O2 -> 2H2O, meaning 2 volumes of hydrogen react with 1 volume of oxygen to produce 2 volumes of water vapor. Since the reaction ratio is 2:1 for hydrogen to oxygen, the 8cm3 of hydrogen will react with 4cm3 of oxygen. Therefore, the initial 20cm3 of oxygen minus the 4cm3 used in the reaction leaves 16cm3 of oxygen remaining.

The first periodic table was organized by Dmitri Mendeleev in 1869. Mendeleev arranged elements according to their atomic weight and properties, leaving gaps for unknown elements that were later discovered.

Ni on the periodic table represents the element Nickel. It is a transition metal with atomic number 28. Nickel is commonly used in various industrial applications due to its properties, such as corrosion resistance and high ductility.

Sodium - group 1

Technetium belongs to the transition metal family on the periodic table. It is a d-block element with the atomic number 43. Transition metals are known for their variable oxidation states and their ability to form colorful compounds. Technetium is a synthetic element and is commonly used in nuclear medicine.

Metalloid elements share characteristics with both metals and nonmetals. Like metals, metalloids can conduct electricity and have shiny appearances. However, like nonmetals, metalloids are typically brittle and can behave as semiconductors in terms of their electrical conductivity.

The positive charge of the nucleus is greater and it draws the electrons closer to the center of the atom. Since the electrons are responsible for the total size of the atom the atom gets smaller and smaller.

Since there are only 26 letters in the alphabet and there are (currently) 111 known elements, therefore not every element can be represented by only 1 letter. Also some elements date back to antiquity and already have symbol names assigned by Alchemists, for instance, rather than being G, gold is Au for the Latin word aurum for shining dawn.

The rows going across the periodic table are called periods. As you go across a row, each element increases in number of protons and electrons, which distinguishes it from other elements in the table.

To find the mass of 42.6 mol of Si (silicon), you need to multiply the molar mass of silicon by the number of moles. The molar mass of silicon is approximately 28.0855 g/mol. Therefore, the mass of 42.6 mol of Si is approximately 1196.371 g.

There is no element labeled "Zu" on the periodic table. If you're looking for an element symbol, it may not exist in the current periodic table. If you provide more context or details, I may be able to help you further.

Ah, what a lovely question! In period 6, the element in the same group as Magnesium (Mg) is Barium (Ba). Both of these elements share similar chemical properties due to being in the same group on the periodic table. Isn't it fascinating how elements can show such wonderful patterns and relationships?

Group 11 on the periodic table consists of the elements copper (Cu), silver (Ag), and gold (Au). These elements share similar chemical properties, including a tendency to form +1 oxidation states. They are commonly referred to as coinage metals due to their historical use in coins.

All elements have at least some radioactive isotopes.

For some elements no radioactive isotopes are known except those that are synthetic (see link to related question below).

For some other elements, there are both radioactive isotopes and stable isotopes in nature. (see link to related question below).

Some elements only have radioactive isotopes, and these are found in nature in at least trace quantities, they include (ordered by atomic number; those marked with * are normally only found in trace amounts in ore as radioactive decay products, and those with ** are distributed radioactive decay products found in trace amounts):

Period 5: technetium*

Period 6: promethium*, bismuth, polonium*, astatine*, radon**

Period 7: francium*, radium*, actinium*, thorium, protactinium*, uranium, neptunium*, plutonium**

The fact that all isotopes of bismuth are radioactive was only recently discovered.

Some elements are only know as a result of synthesis by human activity, and these are as follows:Period 7: americium, curium, berkelium, californium, einsteinium, fermium, mendelevium, nobelium, lawrencium, rutherfordium, dubnium, seaborgium, bohrium, hassium, meitnerium, darmstadtium, roentgenium, copernicium, and anything new that might come along.

The periodic abbreviation for gold is Au. Gold is a chemical element with the atomic number 79 and is known for its shiny, yellow appearance. It is a highly valuable metal with various industrial and decorative applications.

No, chlorophyll is not on the periodic table. The periodic table lists all known elements, which are substances made up of only one type of atom. Chlorophyll, on the other hand, is a complex organic molecule found in plants that is essential for photosynthesis. It is not a pure element and therefore is not included on the periodic table.

Atoms exist only on Earth. Atoms are smaller than quarks. (apex)

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Yes, the periodic table is arranged in order of increasing atomic number. An element's atomic number is a count of its number of protons. If you arrange the elements in this way, certain properties become recurring, or periodic, which is why it's called that.

The element with an atomic number of 4 is helium. Helium is a colorless odorless tasteless non-toxic inert monatomic gas. It is the second lightest element and the second most abundant element in the universe. Helium is most commonly found on Earth as a by-product of natural gas production. It is used in a variety of applications including:

• Cryogenics
• Arc welding
• Pressurizing liquid-fueled rockets
• Gas lasers
• Breathing gas for divers and astronauts

Helium is also used as a coolant in nuclear reactors and MRI machines. It is also used to detect leaks in vacuum systems and pressurized gas systems.

Yes, the elements on the periodic table are pure substances because they consist of only one type of atom. Each element has distinct properties and characteristics that differentiate it from other elements.

A lollipop typically consists of sugar, corn syrup, water, and flavoring agents such as fruit extracts or artificial flavors. The sugar and corn syrup are heated together to form a syrup, which is then poured into molds and allowed to cool and harden around a stick. Some lollipops may also contain food coloring for visual appeal.