Illustration of how elements are formed
Q: An atom is composed of a central nucleus which is surrounded by which orbiting particles?
A: Atoms have a central nucleus that is surrounded by one or more electrons (lightweight negatively…
Q: State and explain whether the activity of a given number of atoms of plutonium is affected when they…
A: The radioactive decay is a nuclear process, and chemical bonding is an atomic process. It means, the…
Q: What do you mean by atomic spectroscopy?
A: The study that involves the interaction of matter of different kinds and electromagnetic radiation…
Q: Consider these atoms: (a) fluorine, F; (b) phosphorus, P; (c) neon, Ne. Rank them, from smallest to…
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Q: Describe the process taking place within an atom that leads to the emission of light.
A: Atom consists of electrons revolving around the nucleus in different shells when they are stable…
Q: Explain the mechanism of nature on how other elements higher than Iron is being formed.
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Q: Give the ion notation for an atom with 15 protons and 18 electrons.
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Q: Explain what makes the elements different from each other. Why is gold different than carbon?
A: Different elements have different properties ( physical and chemical ). In physical properties,…
Q: Order the following elements by increasing atomic radius according to what you expect from periodic…
A: In the periodic table as we move from left to right the atomic radius decreases.Arsenic(As)is a…
Q: Which element has the lightest atoms?
A: The element that has the lightest atoms is hydrogen.
Q: PROBLEM: Which electrostatic forces hold atoms together in a molecule? A
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Q: The half-life of 20 kg of Bismuth -210 is 20 minutes. Explain this statement?
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Q: If you have a sample of an element, it is made of atoms that all have the same number of which type…
A: To identify : The atoms in a sample of an element have the same number of which type of particlesin…
Q: What is the atomic number for the element platinum? 78 47 195 56
A: To determine Atomic number of element platinum
Q: Size and Mass of a Hydrogen Atom
A: The mass of an atom shows how closely the constituents are packed in a given volume, whereas size…
Q: is a process by which large amounts of energy are produced together with new atoms.
A: In the given statement, it is stated that large amounts of energy are produced together with new…
Q: Which characteristic tells you an element is likely a non-metal? Has a shiny/metallic luster Not a…
A: Which characteristic tells you an element is likely a non-metal .The non-metals are elements on the…
Q: Fill in the nine gaps in this table. Element symbol Mg Protons 20 Neutrons 20…
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Q: Thorium and radium used to be put in face creams back in the 1900s. Why is this no longer done?
A: Thorium and Radium are radioactive elements.It pose as a great health hazard.It has a lot of harmful…
Q: Give the ion notation for an atom with 20 protons and 18 electrons
A: Introduction: Ion is defined as an atom that does not have an equal amount of electrons and protons.…
Q: What is the most abundant element in the known universe?
A: There are 114 known elements in the universe.
Q: Fill in the nine gaps in this table. Element symbol Be Protons 6 Neutrons 8…
A: Beryllium is denoted as Be. Carbon is denoted as C. Sodium is denoted as Na.
Q: Fill out the table below. Atomic Mass Number of Number of Name Symbol Charge number Number neutrons…
A: The atomic symbol is of the form XZA, where X is the symbolic representation of the element, A is…
Q: The value of atomic mass unit is equivalent to 9.36 x 10-27 kg 1.66 x 10-32 kg 1.66 x 10-24 ka 1.66…
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Q: Add Text Here! Add Text Here! 4. An alkali metal in period 4. 5. The most abundant element in air.…
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Q: The atom in its natural state is electrically negative charged. True or false, justify your answer
A: The atom in its natural state is electrically negative charged. False statement. The positive…
Q: Which element's isotope is often used to treat cancer patients?
A: The correct option is cobalt Cobalt therapy or cobalt -60 therapy is the medical use of gamma rays…
Q: how is the element carbon used with electrical components and devices?
A: Carbon is a chemical element having an atomic number 6. It’s a non-metallic and tetravalent.…
Q: Expand on what you think will keep the electrons revolving around the nucleus of an atom?
A: The Bohr model, also known as the Rutherford-Bohr model, was first proposed by Niels Bohr and Ernest…
Q: What isotopes of hydrogen fuse best at “moderate” temperatures?
A: Hydrogen, deuterium, and tritium are the three isotopes of element hydrogen. Number of proton are…
Q: Being the great space adventurer that you are you arrive on Mars as part of a scientific expedition.…
A: Number of protons (Z) = 213 Number of neutrons (n) = 73Number of electrons = 213
Q: Select the elements that are ranked correctly from largest to smallest first ionization energy. F,…
A: Option C is the right answer F, Cl, Br, I
Q: What will happen when an electron returns to its original energy level?
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Q: Carbon dating is a process where scientists evaluate the percentage of Carbon-14 atoms that have…
A: Radiocarbon dating is a method that provides objective age estimates for carbon-based materials that…
Q: when an atom loses an electron it becomes: A) neutron B) negative ion C) positive ion D) none of the…
A: An atom is electrically neutral that means the number of electrons in the atom is equal to the…
Q: What happens to the properties of elements across any period of the periodic table? Question 3…
A: The properties of the elements gradually change across any period of the periodic table…
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