a.
To draw: An electron distribution diagram for hydrogen, 1H.
Introduction: The basic unit of matter that has the properties of a chemical element is called an atom. Atom is made up of subatomic particles (neutrons, protons, and electrons). The substance that is made from one type of atom is known as an element.
b.
To draw: An electron distribution diagram for carbon, 6C.
Introduction: Every element has smallest unit of matter that retains the properties of an element”. This smallest unit is called atom. There are three subatomic particles of an atom. These are electrons, protons, and neutrons.
c.
To draw: An electron distribution diagram for oxygen, 8O.
Introduction: In the simplest level of organization, human body consists of various chemical structures. These chemical structures include atoms, ions, and molecules. The atoms and molecules are made up of matter.
d.
To draw: An electron distribution diagram for sodium, 11Na.
Introduction: The basic unit of a matter which possesses the properties of a chemical element is defined as an atom. An atom is made up of nucleus in the center and one or more electrons surround the atomic nucleus.
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Study Guide for Campbell Biology
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- Smoke detectors in homes and apartments contain Am-241, which undergoes alpha decay. What is the abbreviated symbol of the "daughter nuclide" produced in the nuclear reaction? Hint: atomic number of Am is 95. A. a particle B. Pu-237 C. Am-237 D. He - 4 Е. Np-237arrow_forwardGive the molecular formula of the functional group that is missing. a. NH+ b. CH3 c. COOH d. C6H12O6arrow_forwardWhich of the following compounds would be most soluble in carbon tetrachloride, CCl4? a. NH3 d. CH3OHb. H2O e. C6H6c. HClarrow_forward
- Identify the Lewis acid in the following reaction: A. BF3 B. F C. BF4 D. None of these is an acid. B OD O A O Carrow_forwardLook up the valence electron configuration, covalent atomic radius, effective nuclear charge, first ionization energy and Pauling electronegativity in Chapter 8 (tables are attached). Examine the above data and answer the following questions. a) Explain why some of the elements like TI and Pb on the lower left of the p block are metallic. b) Explain why some of the elements like C, Si in the center of the p block form covalent bonds. Explain why these bonds formed by the network of these elements (as studied in Chapter 25) tend to be unreactive. c) Explain why the noble Group 8A elements are highly unreactive gases. d) Explain why some elements like F, CI, Br etc, on the upper right of the p block are highly reactive nonmetals.arrow_forwardA metal ion with a 2+ charge has 23 electrons and forms a compound with a halogen ion that contains 17 protons. a. What is the identity of the metal ion? b. What is the identity of the halogen ¡on and how many electrons does it contain? c. Determine the compound that it forms and name it.arrow_forward
- Isotopes differ from each other only in the number of electrons they contain. Select one: a. True b. Falsearrow_forwardWhat structure is labeled B? B A 台 G H Farrow_forward11.68 Acetylene (ethyne) gas reacts with oxygen and burns at 3300 °C in an acetylene torch. (7.4, 7.7, 8.6, 11.4, 11.5) a. Write the balanced chemical equation for the complete combustion of acetylene. b. What is the molar mass of acetylene? c. How many grams of oxygen are needed to react with 8.5 L of acetylene gas at STP? d. How many liters of CO2 gas at STP are produced when 30.0 g of acetylene undergoes combustion?arrow_forward
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