Concept explainers
Interpretation: From the given properties, the properties possessed by the given element in position 117 should be determined.
Concept Introduction:
Periodic Table: The available chemical elements are arranged considering their
In periodic table the horizontal rows are called periods and the vertical column are called group. There are seven periods and 18 groups present in the table and some of those groups are given special name as follows,
Atomic Number: Atomic number of the element is equal to the number of protons present in the nucleus of the element which is denoted by symbol Z. The superscript presents on the left side of the
Electronic configuration: It is used to denote the distribution of electrons placed over orbitals that present in the atom.
The rules followed by the electrons are as follows,
The electrons gets distributed starting from lower energy orbital to higher energy orbital, pairing of electrons starts after all the orbitals are singly filled and finally, no two electrons that have same spin can occupy the same orbital.
In periodic table the horizontal rows are called periods and the vertical column are called group.
Cation: Removal of electron from the atom results to form positively charged ion called cation.
Anion: Addition of electron to atom results to form negatively charged ion called anion.
The net charge present in the element denotes the presence or absence of electrons in the element.
Metalloid (semi-metal): The chemical element is considered as metalloid if it contains properties of both metals and the non-metals.
Want to see the full answer?
Check out a sample textbook solutionChapter 4 Solutions
Chemistry: Atoms First
- Which of the following are isotopes of element X, the atomic number for which is 9: 919X, 920X, 189X, and 921X?arrow_forwardPart one arrange the following elements in increasing atomic radius potassium, cesium, sodium, hydrogen Part B.) increase the following elements in increasing atomic radius Lead, cesium, thallium, radonarrow_forwardarrange the following elements in order of decreasingionization : Nitrogen, Arsenic, Antimony_____> _____> _____Short Explanation :arrow_forward
- What is the core charge of oxide-15arrow_forwardWhy is iron the most abundant element in Earth’s core?arrow_forwardWhat is radioactive decay? A.theprocess by which an atom of an unstable element can gain stability by emitting energy and particles from its nucleus B.the process by which an atom of an unstable element can gain stability by emitting energy and electrons from its electron cloud C.The process by which an atom of an unstable element can gain stability by emitting energy and neutrons from its nucleus D.the process by which an atom of an unstable element can gain stability by emitting energy and protons from its nucleusarrow_forward
- . What will be the systematic name and atomic symbol given toa. element 202b. element 136arrow_forward6. No element exists with mass number larger than about 300. Explain Why?arrow_forward2-89 Assume that a new element has been discovered with atomic number 117. Its chemical properties should be similar to those of astatine (At). Predict whether the new element’s ionization energy will be greater than, the same as, or smaller than that of: (a)At (b)Raarrow_forward
- Which of the following statements is not correct about the stability of nucleus? a. The stable nuclei of the heavier elements contain approximately equal number of neutrons and protons. b. Nuclei with even numbers of both protons and neutrons are generally more stable than those with odd number of these particles. c. All isotopes of the elements with atomic numbers higher than 83 are not radioactive. d. The stability of any nucleus is determined by the difference between the repulsion and the short-range attraction. The nucleus disintegrates if repulsion prevails.arrow_forwardIdentify if the cosmic phase (bigbang, stellar formation, stellar explosion) in which the reaction occuredarrow_forwardDetermine, by calculations, which isotope of cooper is the most abundant in naturearrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
- Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning