Iron is a metal in the first transition series. The chemical symbol for Einsteinium is Es. Hydrogen has a melting point of -259.14 °C and a boiling point of -252.87 °C. Answer : Option C) The number of neutrons ranges from 0 to 2. The chemical symbol for Strontium is Sr. Strontium is an alkaline earth metal, strontium is a soft silver-white yellowish metallic element that is highly reactive chemically. The chemical symbol for Boron is B. This fact has key implications for the building up of the periodic table of elements. Hydrogen is generally found as diatomic hydrogen gas H2, or it combines with other atoms in compounds—monoatomic hydrogen is rare. The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs. c. isotopes are atoms of the same element that have different: a. masses b. charges c. number of electrons. Nearly all technetium is produced synthetically, and only minute amounts are found in the Earth’s crust. Only about 5×10−8% of all matter in the universe is europium. Titanium can be used in surface condensers. We assume no responsibility for consequences which may arise from the use of information from this website. Indium is a chemical element with atomic number 49 which means there are 49 protons and 49 electrons in the atomic structure. It is also sometimes considered the first element of the 6th-period transition metals and is traditionally counted among the rare earth elements. Explanation : By the definition of isotopes, any atom which has same proton but differ in number of neutrons.In the given element which is Hydrogen. The presence of the hydrogen-4 was deduced by detecting the emitted protons. Thallium is a soft gray post-transition metal is not found free in nature. Fermium is a member of the actinide series. In a neutral atom there are as many electrons as protons moving about nucleus. Isotopes are created when you change the normal number of neutrons in an atom. The chemical symbol for Helium is He. Chlorine is a chemical element with atomic number 17 which means there are 17 protons and 17 electrons in the atomic structure. All heavier isotopes are synthetic and have a half-life less than a zeptosecond (10-21 sec). The chemical symbol for Fluorine is F. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. Einsteinium is the seventh transuranic element, and an actinide. The periodic table lists the atomic weight for each element, which can be used to find mass number, For hydrogen, for example, the atomic weight is 1.008. Sulfur is a chemical element with atomic number 16 which means there are 16 protons and 16 electrons in the atomic structure. The mass number, on the other hand, is a sum total of the number of protons and neutrons. The chemical symbol for Samarium is Sm. Scandium is a silvery-white metallic d-block element, it has historically been sometimes classified as a rare-earth element, together with yttrium and the lanthanides. Atomic Number – Protons, Electrons and Neutrons in Hydrogen. , also known as heavy hydrogen) is one of two stable isotopes of hydrogen (the other being protium, or hydrogen-1). Tritium is considered a waste product in nuclear reactions. The chemical symbol for Iridium is Ir. Hydrogen is the most abundant chemical element in the universe, making up 75% of normal matter by mass and over 90% by number of atoms. Lead is soft and malleable, and has a relatively low melting point. Neodymium is a chemical element with atomic number 60 which means there are 60 protons and 60 electrons in the atomic structure. The chemical symbol for Technetium is Tc. Tellurium is a chemical element with atomic number 52 which means there are 52 protons and 52 electrons in the atomic structure. Hydrogen-4.1 is like helium-4 in having 2 protons and 2 neutrons. For most of the 16 lightest elements (up to oxygen) the number of neutrons is equal to the number of protons. Einsteinium is a chemical element with atomic number 99 which means there are 99 protons and 99 electrons in the atomic structure. Its properties are thus intermediate between those of chlorine and iodine. Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. Name: Hydrogen Symbol: H Atomic Number: 1 Atomic Mass: 1.00794 amu Melting Point:-259.14 °C (14.009985 K, -434.45203 °F) Boiling Point:-252.87 °C (20.280005 K, -423.166 °F) Number of Protons/Electrons: 1 Number of Neutrons: 0 Classification: Non-metal Crystal Structure: Hexagonal Density @ 293 K: 0.08988 g/cm 3 Color: colorless Atomic Structure Palladium is a chemical element with atomic number 46 which means there are 46 protons and 46 electrons in the atomic structure. The name xenon for this gas comes from the Greek word ξένον [xenon], neuter singular form of ξένος [xenos], meaning ‘foreign(er)’, ‘strange(r)’, or ‘guest’. Lead has the highest atomic number of any stable element and concludes three major decay chains of heavier elements. Entire website is based on our own personal perspectives, and do not represent the views of any company of nuclear industry. Krypton is a chemical element with atomic number 36 which means there are 36 protons and 36 electrons in the atomic structure. Which isotope of 4. Berkelium is a chemical element with atomic number 97 which means there are 97 protons and 97 electrons in the atomic structure. It is the heaviest essential mineral nutrient. Oxygen is a colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air. The chemical symbol for Nitrogen is N. Nitrogen is a colourless, odourless unreactive gas that forms about 78% of the earth’s atmosphere. Very soft and malleable, indium has a melting point higher than sodium and gallium, but lower than lithium and tin. It decays through double neutron emission and has a half-life of at least 9.1 × 10−22 seconds. Erbium is a silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. The name samarium is after the mineral samarskite from which it was isolated. Lutetium is a silvery white metal, which resists corrosion in dry air, but not in moist air. This equilibrium also known as “samarium 149 reservoir”, since all of this promethium must undergo a decay to samarium. The chemical symbol for Lawrencium is Lr. Wiktionary The chemical symbol for Niobium is Nb. Protium is the most abundant among three having about 99% relative abundance. Samarium is a typical member of the lanthanide series, it is a moderately hard silvery metal that readily oxidizes in air. The commercial use of beryllium requires the use of appropriate dust control equipment and industrial controls at all times because of the toxicity of inhaled beryllium-containing dusts that can cause a chronic life-threatening allergic disease in some people called berylliosis. The helium-8’s neutrons were donated to the hydrogen’s nucleus. At 3000K, the degree of dissociation is only 7.85%. Boiling point: minus 423.2 F (minus 252.87 C) 8. Cerium is also traditionally considered one of the rare-earth elements. The nucleus is composed of protons and neutrons. The chemical symbol for Francium is Fr. Silicon is a hard and brittle crystalline solid with a blue-grey metallic lustre, it is a tetravalent metalloid and semiconductor. The most probable fission fragment masses are around mass 95 (Krypton) and 137 (Barium). Silvery and tarnishes black when exposed to air, but surface oxidation can give a... Are 99 protons and 15 electrons in the Earth ’ s crust, comparable to of... 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