BIOLOGY W/CONNECT >IP<
11th Edition
ISBN: 9781259910487
Author: Raven
Publisher: MCG CUSTOM
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Textbook Question
Chapter 2, Problem 3U
An atom with a net positive charge must have more
a. protons than neutrons.
b. protons than electrons.
c. electrons than neutrons.
d. electrons than protons.
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The atomic mass of an element can be used to determine
A) the chemical properties of the element
B) the number of protons in the element
C) the number of neutrons in the element
D) the number of protons plus neutrons in the element
E) both the number of protons and the chemical properties of the element
Which statement is true of all atoms that are anions?(A) The atom has more electrons than protons.(B) The atom has more protons than electrons.(C) The atom has fewer protons than does a neutral atomof the same element.(D) The atom has more neutrons than protons.
The atomic number gives thea. number of neutrons in the nucleus.b. number of protons in the nucleus.c. weight of the atom.d. number of protons in the valence shell.
Chapter 2 Solutions
BIOLOGY W/CONNECT >IP<
Ch. 2 - The property that distinguishes an atom of one...Ch. 2 - If an atom has one valence electronthat is. a...Ch. 2 - An atom with a net positive charge must have more...Ch. 2 - The isotopes carbon-12 and carbon-14 differ in a....Ch. 2 - Which of the following is NOT a property of the...Ch. 2 - Ionic bonds arise from a. shared valence...Ch. 2 - A solution with a high concentration of hydrogen...Ch. 2 - Using the periodic table on page 22, which of the...Ch. 2 - Refer to the element pictured. How many covalent...Ch. 2 - Prob. 3A
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- What atom has only one proton? a. hydrogen c. a free radical b. an isotope d. a radioisotopearrow_forwardWhat is an alloy? A. A compound of two metals B. An element of two metals C. A mixture of two metals D. A molecule of two metalsarrow_forwardThe nucleus of an atom contains: a. neutrons and electrons b. protons and electrons c. protons only d. neutrons and protons e. neutrons onlyarrow_forward
- Atoms are incredibly tiny, so small that most microscopes can't even see them, but atoms themselves are made of even smaller particles: protons, neutrons, and electrons. Which of the following describes where protons are located in an atom? A. A shell B. The nucleus C. Both the nucleus and a shellarrow_forwardA carbon atom contains six protons and six neutrons.A. What are its atomic number and atomic weight?B. How many electrons does it have?C. How many additional electrons must it add to fill its outermost shell? How does this affect carbon’s chemical behavior?D. Carbon with an atomic weight of 14 is radioactive. How does it differ in structure from nonradioactive carbon? How does this difference affect its chemical behavior?arrow_forwardWhich statement is false? A. Elements are found in compounds and molecules B. compounds are made of elements C. a molecule must be made of at least two atoms D. chemical bonds form between molecules of solute and solvent E. two atoms of oxygen make a molecule of oxygenarrow_forward
- Which of the following statements about chemicalbonds is true?a. Covalent bonds are stronger than ionic bonds.b. Hydrogen bonds occur between two atoms ofhydrogen.c. Bonding readily occurs between nonpolar andpolar molecules.d. A molecule of water is unlikely to bond with anion.arrow_forwardWhat is a proton? A. A negatively charged particle B. A positively charged particle C. An element on the periodic table D. Any particle found in the nucleusarrow_forwardThe atomic number of an atom is determined by the number of in the atom. (a) protons (b) neutrons (c) electrons (d) electrons plus neutrons plus protonsarrow_forward
- Which of the following levels in the shell model of an atom can hold up to two electrons? A. The second shell B. The first shell C. The third shellarrow_forwardThe atomic mass number of an atom is determined by the sum of the number of in the atom. (a) protons plus electrons plus neutrons (b) protons plus electrons (c) neutrons plus electrons (d) neutrons plus protonsarrow_forward11H and 13H have (a) different chemical properties because they have different atomic numbers (b) the same chemical properties because they have the same number of valence electrons (c) different chemical properties because they differ in their number of protons and electrons (d) the samechemical properties because they have the same atomic mass (e) the same chemical properties because they have the same number of protons, electrons, and neutronsarrow_forward
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