Fill in the blanks.
a) The symbol and atomic number of the heaviest alkali metal are _____ and _____ .
a) The symbol and atomic number of the heaviest alkali metal are Fr and francium
alkali metals
Li,Na,K,Rb,Cs,Fr
Fill in the blanks. a) The symbol and atomic number of the heaviest alkali metal are...
Fill in the blanks for the missing nuclide K-40 beta + ? mass # = atomic #= Symbol =
Plot the same property against atomic number for the elements in the alkali and halogen groups D.Based on your graph of data, write down the general periodic relatioship established between the atomic radius and increasing atomic number within the group of alkali-metals and halogens. C. Plot the same property against atomic number for the elements in the alkali and halogen groups D.Based on your graph of data, write down the general periodic relatioship established between the atomic radius and increasing...
Using a periodic table, fill in each of the following blanks with the most appropriate answer. a) The alkali earth metal with the largest atomic radius is. b) All of the elements in group 7 have valence electrons with the general electron configuration. c) The element in period 4 with the largest ionization energy is. d) An atom of K is (smaller/larger) than an atom of F.
(4) Consider the following partial table of isotopes. Fill in the blanks. Isotope Atomic Number Mass Number # of Protons # of Neutrons # of Electrons Carbon-14 - 14 131 53 92 143
Match the element below's symbol and atomic mass with the correct description. Enter only the letter of the correct choice. a. the heaviest alkaline earth metal b. the lightest metalloid in Group 5A(15) c. the coinage metal in Group 1B(11) whose atoms have the fewest electrons d. the halogen in Period 4
An element has mass number 80 and contains 35 electrons. Fill in the blanks Number of protons_____ Number of neutrons _____ Atomic number _____ Name _____ Nuclide symbol (isotope) _____ Located on period _____& column _____ Type of element _____ Belongs to the group called _____ A compound has a melting point of 133.0C degree and boiling point of 272.0 C degree. This compound is kept at 119 F. What is the physical state of this compound at this temperature?...
1) Last I checked, the heaviest atom confirmed was Oganesson, with an atomic number of 118 with an outer electron shell of 7s? 7p. At what atomic number will we first see an atom with an outer s-shell of 8s?? What about 9s'?
5. (2 points) Give the name, atomic symbol, and group number of the element with each Z value, and classify it as a metal, metalloid or non-metal: A) Z 33 B) Z 20
what is the core charge of these elements? Model 2 – The Alkali Meta Atomic Number 3 Core Charge Lithium Sodium I Potassium 119 9. Describe the relationship of 1: elatiue nositions on
Part A What is the symbol (including the atomic number, mass number, and element symbol) for the carbon isotope with 7 neutrons? Express your answer as an isotope with stacked prescripts. Subm Press Best Answer