(4) the same quantity of charge and the opposite sign
Protons, neutrons, and electrons are generally called subatomic particles. They are important components for building atoms. Each atom has a different number of protons, neutrons, and electrons. And ask how the atom maintains its identity and uniqueness. They have different charges and different masses. Also, the role of each subatomic particle is very different from each other. The main difference between Protons, Neutrons, and Electrons can be found in the charge. Protons are positively charged and neutrons are neutral while electrons are negatively charged.
Protons are positively charged. The charge, in this case, is determined by the number of coulombic charges an electron has. The charge of a proton is the same as loading an electron and, approved, can be expressed as 1e. (1e = 1,602 * 10 ^ (- 19) C).
Protons, along with neutrons, are called "nucleons." There are one or more protons in each atom. The number of protons is different in each atom and makes the identity of the atom. When elements are grouped together in a periodic table, the number of protons is used as the atomic number of the element.
Electrons are the third type of subatomic particles, and they are found to orbit around the nucleus in discrete energy levels with discrete. Just like the number of protons, the number of electrons in an atom which carries the identity of each element. The way electrons are published in each element is expressed by their electronic configuration. The number of electrons is similar to the number of protons found in an element. The electron is symbolized as 'e.' Electrons are the only subatomic particles that take part in chemical reactions. They also take part in certain reproductive reactions.
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proton and electron brainly.com/question/490562
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Grade: high school
Subject: chemistry
keywords: proton, electron.
In DNA, the nitrogenous bases are represented by A for Adenine, T for Thymine, C for Cytosine, and G for Guanine. Adenine pairs with Thymine, and Cytosine pairs with Guanine, through hydrogen bonds.
In DNA, there are four nitrogen bases represented by the letters A (Adenine), C (Cytosine), G (Guanine), and T (Thymine). These bases form complementary base pairs, with A pairing with T, and C pairing with G. The bases are held together by hydrogen bonds, with A and T sharing two hydrogen bonds, while C and G share three. These bases are differentiated by their ring structures: Adenine and Guanine are double-ringed structures called purines, while Cytosine and Thymine are single-ringed structures known as pyrimidines. The pairing always occurs between one purine and one pyrimidine, which helps maintain the uniform shape and structure of the DNA molecule.
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Tarnishing of silver is a chemical property while an apple being cut is a physical property.
Any property which describes the state of a physical system is called as a physical property.Changes in physical properties are used to describe changes between the states. They are often related to as observable properties.
Physical property which can be quantified is a physical quantity. These are also classified further with respect to their directionality. Isotropic properties do not change with direction of observation while anisotropic properties change with direction of observation.
Physical properties are differentiated from chemical properties by the way they determine how a substance behaves in a chemical reaction.
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Answer: Option (4) is the correct answer.
Explanation:
Activation energy is the minimum amount of energy required by reactant molecules to undergo a chemical reaction.
Whereas a catalyst is defined as the substance that helps in increasing the rate of reaction by decreasing the activation energy without itself getting consumed in the reaction.
When a catalyst decreases the activation energy then molecules with lesser energy become able to participate in the reaction and thus, products are obtained at a faster rate. Hence, a catalyst increases the rate of a reaction.
Thus, we can conclude that a catalyst works by decreasing the activation energy required for a reaction.
(2) nitrogen (4) fluorine
Answer: Option (1) is the correct answer.
Explanation:
Carbon atoms are able to combine with its atoms resulting in formation of long chains. This property of carbon is known as catenation. Whereas carbon atom also has the property to combine with other atoms and results in the formation of long chains or rings.
On the other hand, oxygen, nitrogen, and fluorine does not form long chains or rings.
Thus, we can conclude that carbon is the element whose atoms can bond with each other to form long chains or rings.