Which of the following refer to elements in D-block? O Inner transition metals O Metalloids O Alkaline earth metals O Transition metals

Q: Using the periodic table, identify the heaviest member of each of the following groups:(a) alkali…

A: a) Alkali metals: Group 1 of periodic table is known as alkali metals and they consist of lithium…

Q: I. Complete the table based on the information provided. Atomic No. of No. of Mass Isotopic Symbol…

A: 1. 79.         2. 118      3. 79Au197    4. Gold  5.97         6. 247    7. 97Bk247    8.Berkelium…

Q: Write isotopic symbols in the form zXA for each isotope. the argon isotope with 22 neutrons

A: Different forms of same element which have different mass number (A) and same atomic number (Z).…

Q: The newly discovered element Nh (Nihonium), with atomic number 113, would be a member of which…

A: Atomic number of this newly discovered element Nihonium (Nh) is 113. In the periodic table, period…

Q: Which of the following describes the element Ba? Choose all that apply:(a) is very reactive as a…

A: The element given is Barium i.e Ba.

Q: Provide the following information: a. the atomic number and symbol of the lightest alkali metalb.…

A: a. the atomic number and symbol of the lightest alkali metal Symbol = Li Atomic number = 3 b. the…

Q: Calculate the atomic mass of the element: Mass                Abundance 22.1760             45.00%…

A:

Q: Write isotopic symbols in the form zXA for each isotope. the copper isotope with 36 neutrons

A: Isotopes of elements are the one that have same atomic number but different mass number.  Sum of…

Q: Which of the following is False?a. An element is defined by its atomic number.b. Ninety-two elements…

A:

Q: Sr-90 has [ Select ] neutrons than Y-91

A:

Q: Select the symbol of the element that fits each of the following descriptions: (a) the alkaline…

A: Symbol of the elements that fits given descriptions are,

Q: Which particle diagram represents a mixture of three substances? * 1 point Key O = an atom of one…

A: option 2  here in this image , there are 3 different types of molecules 1) two atoms of one element…

Q: 1. Complete the following table: Symbol # protons # neutrons # electrons Mass Atomic number Number…

A: The atomic number is the number of protons or electrons present in the element. The atomic mass…

Q: Which of the following categories includes the majority of the elements metalloids, nonmetals,…

A:

Q: What is the name of the elements with the followihg atomic numbers: Atomic Number Element 41 60 91

A: Write name of the given atomic number---

Q: The type of element an atom is depends solely on the number of ______________________ it has.   a.…

A: Explained as follows

Q: hich of the following applies to the electron? (a) Charge = -1; (b) Mass = 1 amu; (c) Charge = 0;…

A: Particles that are smaller than atoms and that constitute the atom are called subatomic particle.…

Q: Fill in each line with the Chemical Symbol of the element being described: The Noble gas with the…

A: These all answers are based on periodic table .

Q: Write isotopic symbols in the form zXA for each isotope. The copper isotope with 34 neutrons

A: It’s explained below:

Q: The element lithium has two naturally occurring isotopes.One of these has a mass of 6.0151 amu and a…

A: Given that: mass of first isotope = 6.0151 amu abundance = 7.49 % mass of second isotope = 7.0160…

Q: 17. Which one of the following statements is true for an isotope of a particular element? O a…

A: Isotope - Two or more forms of the same element that contain equal numbers of protons but different…

Q: Which of the following elements has its name derived from its property of being slightly magnetic?*…

A: Isotopes are the different forms of an element.

Q: An element 'A' contains 15 protons, 15 electrons and 16 neutrons. it is |. It becomes when it has 15…

A: The atomic number of an atom is the number of protons present in the atom. For a neutral atom, the…

Q: What is the element based on this clue: It has 3 shells of e- and 2e- in last shell?

A:

Q: Elements that lie on the left side of the periodic table are generally non-metals?

A:

Q: In the symbol 48TI2* represents an atom or ion with protons, neutrons, and electrons.

A: The electronic configuration of neutral Ti = [Ar]3d24s2 To convert Ti----> Ti2+  , It loses 2…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: Answer :-  R44101u…

Q: Identify each of the following elements as a metal, nonmetal,or metalloid: (a) gallium, (b)…

A: Metals are those elements which show metallic properties like shiny appearance, ductile and…

Q: Identify each of the following elements as a metal, non-metal, or metalloid: (a) gallium, (b)…

A: In the periodic family: Metals exhibit electropositive character. Non-metals exhibit electronegative…

Q: Which pair of elements do you expect to be most similar? Why?a. nitrogen and oxygenb. titanium and…

A: An element belongs to same group posse’s similar properties.

Q: What are the elements in the A columns of the periodic table called a.Main group elements b.…

A:

Q: Atomic number of an element = number of:        2.  Atomic mass of an element = number of    ..…

A: Atomic Number: It is defined as the total number of protons present in an atomAtomic Mass: It is…

Q: Complete the following sentence: 12C and 13C are uncharged atoms with the same ___ . atomic…

A:

Q: Atoms with the same atomic mass but different atomic number is: Isotope Allotrope Isotone Isobar

A: Isotope= Atoms with same atomic number but different mass number is called isotope. (12C and 13C…

Q: Identify the element fi tting each description. a. an alkali metal in period 4 d. a main group…

A: a. an alkali metal in period 4 : K ( Potassium )   b. a second-row element in group 7A : F (…

Q: the elements with atomic numbers 9,17,35,53 and 85 all are a   noble gases b    halogens c     heavy…

A: Fluorine, chlorine, bromine, iodine, and astatine are the member of the halogen group and all of…

Q: d) how many 4°K atoms are present in a piece of copper block weighing 615 g? The percent isotope…

A: 12. d) The mass of the copper block is = 615 g The percent of 40K isotope is = 12.05 % The number of…

Q: Which of the following is the most important factor in determining an element's place in the…

A: Answer: The number of Protons(Atomic Number)

Q: Which element has an atomic number of 30?

A: We can find the name and position of this element by studying the periodic table of elements.

Q: Which of the following statements is/are incorrect? Select all that apply. You may choose more than…

A: Answer: Here, only the last option is incorrect, other than that the rest of the options given about…

Q: 12, Which of the statements is not correct about the element germanium? Group of answer choices A,…

A: Germanium is an element with an atomic number 32. The germanium atom has 32 protons and 32…

Q: Classify the following elements as halogens, alkali metals, alkaline earth metals, or noble gases.…

A: A) The elements given are Ca, Cm, P, Pt, Cu and Ga.

Q: Elements in Group 7A are known as the A) alkaline earth metals B) alkali metals C) chalcogens E)…

A: Periodic table represents the systematic arrangement of elements in which the properties of these…

Q: See if you can complete the following table using only what is on this page. ( Fill in th blanks )…

A: All the elements in chemistry are known by its symbol popularly known as element symbol . Each…

Q: 8. Complete the following table with the appropriate data for each isotope given (all are neutral…

A:

Q: and not the identity of the element) 17 X 2+ Protons 7 Neutrons 10 electrons name (identity) of…

A: In atoms, electrons are revolving around the nucleus. Nucleus is made up of protons and neutrons.

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.