Element Quizzes Online & Trivia

Zinc is traditionally denoted as Zn and therefore, the chemical symbol of zinc is Zn. It is a transition metal. Zinc has an atomic number of 30. Zinc is similar to magnesium in chemical structure as both elements exhibit just one normal oxidation state of plus two (+2). Zinc is brittle at room temperature and it becomes malleable when it gets above 100 degree Celsius. Zinc belongs to group 12 elements, 4th period and the d block on the periodic table. Zinc is commonly used in galvanization when other metals are subjected to rusting.

In science, you may see the terms “compound” and “element” quite often. That is because they are words that are used often in describing science concepts. The main difference between compounds and elements is what makes them up. Elements are found on the periodic table. Each element is made up of atoms. These atoms are the same. Each compound is made up of a combination of elements. Therefore, it seems that the elements are smaller than the compounds or simpler based on their make-up. Elements are represented on the periodic table by a symbol. The compounds are represented by a formula which may include the element’s symbol. An example of an element is Cu for copper. An example of a formula for a compound is H2O for water.

A neutron star is a celestial body, which is less than 30 km. it consists of closely packed neutrons. Theory suggests that they form due to the collapse of the star. They can also form after a supernova explosion. However, it should not be too big, or it will result in the formation of black hole instead of a neutron star. Hence, we can say that a neutron star is a red supergiant that is going into a supernova that is on the smaller side. This is because, if it is too big, it will form a black hole. Taking these celestial rules into account, one can easily navigate the terminology of space and understand the different concepts.

An element is a substance that is made up of only one kind of atoms. There are 118 elements (92 naturally occurring elements while the rest have been created in a lab or theorized) that are found in the periodic table. An element can be determined by the number of protons found inside the nucleus of an atom. And the number of protons in the nucleus of an atom is also known as the atomic number of any element.

The Electronegativity difference between carbon and oxygen is 1. Carbon and Oxygen both are elements. Where Carbon is present in a solid form, oxygen presents itself in the form of a gas having two molecules of oxygen covalently bonded with each other. A covalent bond between carbon and oxygen results in a gaseous compound called carbon dioxide, comprising of a single carbon molecule and two molecules of oxygen. In chemistry, elements are the most basic classes of substances that can be formed, and all compounds are produced by varying combinations of these very basic elements. They are all listed in a table called the periodic table.

Nauru is an island in the middle of the Pacific Ocean. It is closest to the continent of Australia. Unlike most other islands, Nauru is made up of phosphate. This mineral can be extracted and it is easily extracted on this island. For years, Nauru was extracted for its phosphate. Many citizens living on the island were residing comfortably due to the export of this product. However, after years of this, the consistent extraction of the material has caused damage to the land and environment. Now, there is no more on the phosphate that can be knowingly extracted. There are a couple of surrounding islands that also have phosphate and they are Banaba and Kribati. Most of the land on the Nauru Island is damaged from the mining.

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The alloy and the composite are known to be highly similar to each other. The composite is made out of two or more components that will not be composed of metals. The alloy is also composed of two or more components but it should have some metal as a part of the mixture. Take note that alloys and composites are known to have some differences depending on the type of materials that are usually placed or mixed together. Steel is an example of an alloy because it comes with some metal materials that will ensure that it will do exactly what it is supposed to do. Some of the materials retain their original properties.

Vessel elements and tracheids are responsible for the transportation and circulation of water within the plant body. They are components of the xylem, and they are collectively called tracheary elements. Although vessel elements and tracheids have similar functions, they are different. Vessels of elements are formed by the piling up of many cells. A vessel is a syncyte. The average length is about 10cm. The cells are shorter and broader than tracheids. The end of the wall is often perforated. Vessels of elements are more efficient in water conduction than tracheids. Tracheids are formed from single individual cells, and they are not syncyte. The average length is about 1 mm. The cells of tracheids are longer and narrower than vessels. Tracheids end wall without perforations. They are also less efficient in water conduction.

There is no big difference between AHU and RTU; this is because RTU is just a type of AHU. AHU is the acronym for Air Handling Unit, while RTU is the acronym for Rooftop unit. AHU is a machine which helps in circulating and conditioning the air in order to create a perfect atmosphere that is not too warm or too cold. There are so many parts of AHU like cooling component, heating component, and there is a part called mixing component. Also, there is humidifier, vibration isolator and a device for heat control and recovery. Since RTU is a type of AHU, all the various components and devices present in AHU are also present in RTU. The slight difference between them is that RTU is mostly fixed on the rooftop, and that is why it is called a rooftop unit. There are other types of AHU. They are; Makeup Air Units, Mall Air Handlers.

Quick sort and merge sort are two sorting techniques used in arranging items that seem complex in a definite proportion and order, so that each item being sorted can be easily located. However, there are differences between quick sort and merge sort. The differences between quick sort and merge sort can be discussed in relation to the various ways the two are used. Quick sort entails the special way of dividing items into a simpler form or subsets so that each sub problem can be easily sorted. The process adopts three main stages in sorting items. This includes, the identification of the pivot element, elements less than the pivot element and the element greater than the pivot element, after which the items are sorted. While merge sort has to do with the breaking down of items into two subgroups, after which they are sorted. The sorted items are then merged together for a final sorting process.