saponification
depositon
decomposition
Answer: The alpha particle is released after alpha radiation.
Explanation:
Alpha decay is defined as the decay process in which a heavier nucleus decays into a lighter nuclei. This decay process releases alpha particle which is also known as helium nucleus.
The general alpha decay reaction is given as:
The particle released will carry a mass of 4 units and carries a charge of +2 units.
Hence, the alpha particle is released after alpha radiation.
Answer:
Mg ( C )
Explanation:
The first element of the periodic table is hydrogen (H), and the second element is helium (He).
Hydrogen, with atomic number 1, is the first element in the periodic table. It is the lightest and the most abundant element in universe. Hydrogen is a colorless, odorless gas and is the building block for all other elements.
Helium, with atomic number 2, is the second element in the periodic table. It is also a gas, but unlike hydrogen, it is inert and does not readily react with other elements. Helium is known for its low density, which makes it lighter than air, and it is commonly used for filling balloons and as a cooling medium in various scientific and industrial applications.
So, the first element of the periodic table is hydrogen (H), and the second element is helium (He).
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b. a double bond.
c. ionic.
d. polyatomic.
A covalent bond where electrons are shared unequally is known as a polar bond. This unequal sharing occurs due to differences in electronegativity between the two atoms involved in the bond.
A covalent bond in which electrons are shared unequally is defined as a polar bond. This corresponds to option a) polar. This occurs because one atom is more electronegative and pulls the shared electron pair towards its nucleus making the bond polar, having a partial positive and partial negative end. Option b) a double bond, refers to a covalent bond where two pairs of electrons are shared between atoms. Option c) ionic refers to a bond where electrons are completely transferred from one atom to another and option d) polyatomic refers to a molecule that consists of more than two atoms.
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