record the element names, chemical symbols, and atomic numbers for the following 14 elements along with observations of the physical characteristics or chemical reactions shown. Hydrogen White Phosphorous Copper Bromine Cerium Rhenium Thorium Einsteinium Dubnium In addition to the element name, chemical symbol, and atomic number, name the color of the following noble gases when they are illuminated. Helium Neon Argon Krypton Xenon

Q: Using a deuteron beam, a sample of isotopically enriched fluorine is generated, consisting of 18F…

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Q: Read each description in the first column of the table below. If any chemical element with atomic…

A: Modern periodic table is a tabular form of elements according to their increasing atomic number. It…

Q: Read each description in the first column of the table below. If any chemical element with atomic…

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Q: What are the chemical symbols and atomic number of Barium Ba and Magnesium Mg

A: According to the periodic table Barium belongs to group 2 ,while magnesium also belongs to group 2 .

Q: Two neutral objects are sketched below, in black and white. There are positive and negative electric…

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Q: Activity 7: Classification of Elements Dividing elements into groups is not the only way to classify…

A: We have to differentiate between metals, metalloids and non metals. Most elements of periodic tables…

Q: Mercury emits a number of discrete wavelengths of visible light when an electric current passes…

A: According to Quantum mechanics, the light wave that hits on the surface of metals are not continues…

Q: Identify the element that fits each description. An alkali metal in period 6 a main group element in…

A: Given :-  An alkali metal in period 6 a main group element in period 3, group 7 A main group…

Q: :S: This dot structure represents which of the following answers: O S^2- O (Ne] 35^2 3p^6 O S2+ O…

A: The given lewis structure  S-2 have total 18 electrons ,16 from sulfur And 2 from -2 charge.

Q: Identify these elements based on their locations in the periodic table. Give the symbol, not the…

A: The standard periodic table consists of 7 horizontal rows called as periods and 18 vertical rows…

Q: Which of the following atoms has the least metallic character? Rb Li Na Cs K

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Q: Matter is comprised of All of the 98 elements that occur naturally have unique qualities that allow…

A: 1. atoms  2. Compound 3. atoms  4. Bonds  5. Interaction

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.