essIeactive!. Which main group elements have 1 valence electron?6 valence electrons?Without looking ot the nomic

1. The group 1A have one valence electrons. The main group elements are in group 1 – Hydrogen (H),…

Answered: ess Ieactive! . Which main group…

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter3: Electronic Structure And The Periodic Law

Section: Chapter Questions

Problem 3.21E

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Similar questions

What are bus? How are ions formed from atoms? Do isolated atoms form ions spontaneously? To what do the termscationandanionrefer? In terms of subatomic particles, how is an ion related to the atom from which it is formed? Does the nucleus of an atom change when the atom is converted into an ion? How can the periodic table be used to predict what ion an element’s atoms will form?
Which of the following is true about an individual atom? Explain. a. An individual atom should be considered to be a solid. b. An individual atom should be considered to be a liquid. c. An individual atom should be considered to be a gas. d. The state of the atom depends on which element it is. e. An individual atom cannot be considered to be a solid, liquid, or gas. Justify your choice, and for choices you did not pick, explain what is wrong with them.
lement X, which has a valence shell configuration of ns2np4 , was isolated in a laboratory. Which of the following statements is(are) true concerning element X? Element X has chemical properties similar to those of the halogens. Element X has six valence electrons. When element X is reacted with calcium, the compound formed would most likely have the formula Ca2X . Element X needs to gain two electrons to attain a noble gas electron configuration. mg src=Images/HTML_99425-11-106AP_image001.jpg alt="" align="top"/>
What are the symbols of the following nonmetals: fluorine, chlorine, bromine, sulfur, oxygen, phosphorus?
Reaction of 2.0 L of hydrogen gas with 1.0 L of oxygen gas yields 2.0 L of water vapor. All gases are at the same temperature and pressure. Show how these data support the idea that oxygen gas is a diatomic molecule. Must we consider hydrogen to be a diatomic molecule to explain these results?
The model consists of balls and sticks. a. How many holes should be in the ball you select for the N atom? ___________ b. How many holes should be in the ball you select for the H atoms? ____________ c. How many holes should be in the ball you select for the Cl atom? ____________ The electrons in the molecule are paired, and each stick represents a valence electron pair. d. How many sticks do you need? ____________
2.85 Describe how the saying “opposites attract” corresponds with the mathematical representation of Coulomb’s law shown in Equation 2.1. Remember that attractive forces have negative values and repulsive forces have positive values.
Which of the following statements is correct and provides the best explanation when removing the first two electrons from calcium? Energy is released when either electron comes off because calcium is a metal and not very electronegative. It takes less energy to remove the second electron from calcium compared with the first because calcium wants to have eight electrons in its outer shell (and thus have a noble gas configuration. It takes less energy to remove the first electron compared with the second because it is in a higher energy level than the second electron. Electrons cannot be removed from calcium because it is a metal and only wants to gain electrons to become more stable. It takes more energy to remove the second electron compared with the first because the nucleus binds the electrons more tightly as each electron is removed.

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ess Ieactive! . Which main group elements have 1 valence electron? 6 valence electrons? Without looking ot the nomic