Biology: Life on Earth (11th Edition)
11th Edition
ISBN: 9780134168296
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Question
Chapter 2, Problem 2FTB
Summary Introduction
To review:
The given blank space in the statement, “an atom that has lost or gained one or more electrons is called a(n) ________. If an atom loses an electron it takes on a(n) ________ charge. Atoms with opposite charges attract one another, forming ________ bonds.”
Introduction:
Atoms are the smallest units present in all the elements. Many atoms combine together to form molecules and elements. These atoms are linked together by ionic bonds, covalent bonds or hydrogen bonds.
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An atom that has lost or gained one or more electrons iscalled a(n)______ . If an atom loses an electron it takes on a(n)____________ charge. Atoms with opposite charges attract one another, forming______ bonds.
An atom that has lost an electron is said to be
positive (positively charged)
negative (negatively charged)
an atom whose number of electrons does not equal its number of protons is called...
ion
isotope
compound
element
Chapter 2 Solutions
Biology: Life on Earth (11th Edition)
Ch. 2 - 1. Which of the following is false?
a. An element...Ch. 2 - Prob. 2MCCh. 2 - Isotopes are defined as a. atoms of the same...Ch. 2 - Molecules a. always consist of different elements...Ch. 2 - 5. Covalent bonds
a. link water molecules in...Ch. 2 - 1. An atom consists of an atomic nucleus composed...Ch. 2 - Prob. 2FTBCh. 2 - Prob. 3FTBCh. 2 - An atom with an outermost electron shell that is...Ch. 2 - Water is described as _____ because each water...
Ch. 2 - Based on Table 2–1 how many neutrons are there in...Ch. 2 - 2. Distinguish between atoms and molecules and...Ch. 2 - 3. Compare and contrast covalent bonds and ionic...Ch. 2 - 4. Explain how polar covalent bonds allow hydrogen...Ch. 2 - Why can water absorb a great amount of heat with...Ch. 2 - 6. Describe how water dissolves a salt.
Ch. 2 - Define pH scale, acid, base, and buffer. How do...Ch. 2 - Prob. 1ACCh. 2 - Prob. 2ACCh. 2 - You can now buy “whiskey stones” made of granite,...
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- _____________bonds hold hydrogen to oxygen within a water molecule, while ___________ bonds attach one water molecule to another water molecule due to their polarity. Group of answer choices: ionic; hydrogen covalent; hydrogen hydrogen; ionic covalent; ionic hydrogen; covalentarrow_forwardThe protons and neutrons are contained within the of the atom. O Electron Cloud Atomic Center Middle O Nucleusarrow_forwardIn a water molecule, hydrogens are partially _____; oxygens are partially _____.arrow_forward
- Silver (Ag) atoms contain fewer electrons, neutrons and protons than Gold (Au) atoms. To change Silver into Gold, a chemist might try to add nucleus, because these particles are the ones that to the determine the identity of an atom. protons and electrons neutrons electrons neutrons and electrons protonsarrow_forwardIf an electron spends more time with one atom in a molecule and less time with another, the atom with the electron spending more of its time will be partially negatively charged. the same partially positively chargearrow_forwardWhy the Number of Electrons Matter Since we know each element as a defined number of protons, we can also use that number to determine the number of electrons, assuming the element has no charge. Let’s write some out: ELEMENT NUMBER OF PROTONS NUMBER OF ELECTRONS C A B O C D Al E F Na G H Si I Jarrow_forward
- Knowing the atomic mass of an element allows inferences about which of the following? the number of protons plus neutrons in the element the number of protons plus electrons in the element the number of electrons in the element the number of protons in the elementarrow_forwardAn Element from Group 5A and Group 6A shared a Chemical Bond. This entails that ____________ . Select your answer. The compound formed is soluble in water The compound formed conducts electricity when dissolved in Chloroform The compound formed has very low Boiling point The compound formed has very High Solubility in Polar Solventsarrow_forwardWhich of the following combinations describes the electron in the modern model of an atom? O negative charge and located in orbitals surrounding the nucleus Opositive charge and located in orbitals surrounding the nucleus negative charge and located in the nucleus Ono charge and located in the nucleusarrow_forward
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