Question 3 An element has the following electron configuration: [Ne] 3s² 3p³. How many core and valence electrons does this element have? 12 core and 3 valence 10 core and 5 valence O 2 core and 13 valence 5 core and 10 valence O 12 core and 5 valence 8 core and 7 valence

Q: predict the charge of each element based on its position on the periodic table P Na S Cl Mg O…

A: Predict the charge of the given ions-

Q: Use the atom builder interactive to arrange each atom or ion by mass number. Largest mass number…

A: Mass number: The atomic mass of elements depends on the number of protons and neutrons. The total…

Q: What element is represented by 1s22s22p 3s²3p6 0 Kr OS O Sc+3 00 O Br

A: electron configuration is the distribution of electrons of an atom or molecule in atomic or…

Q: A 7.12 g Sample of magnesium was heated with 1.80 g bromine. All the bromine was used up, and 2.07 g…

A: Answer: This question is based on the concept of limiting reagent. It is the reactant that exhaust…

Q: HA Element Investigation Directions: Research an element and prepare a piece of the periodic table.…

A: We have to tell about Hydrogen, its Physical amd chemical properties

Q: If F is a reactive nonmetal, which other element or elements shown hereare likely to be reactive…

A: Concept introduction: Modern periodic table can be classified on the basis of the atomic number of…

Q: Which group includes elements with the most similar properties? Group of answer choices Cr, Pb, and…

A: In a periodic table, elements are classified into horizontal rows called periods and vertical…

Q: Fill in the correct value for each position in the atomic symbol for an atom containing 26 protons,…

A: An atomic symbol consists of four parts. Mainly it consists of the chemical symbol for the…

Q: 2. 1st ionisation energy (kJ/mol) First lonisation Energy of the Group 1 elements 600 500 400 300 4…

A:

Q: Identify the elements correctly shown by decreasing radii size. ON> N3- Cu2+ > Cu* N3- >N S > s2- O…

A: The size of the atom or on is the distance between the nucleus and the outer most electrons When an…

Q: 6. Calculate the atomic mass of the element described below (both atoms of the same element). Then…

A: Isotopes are defined as the atoms of same element having same number of protons but different number…

Q: A change in the number of neutrons of an atom produces an O Isotope lon Element O alpha particle…

A: The correct answer is given below

Q: Which sublevel in the second principal quantum number is represented by the following graph?

A:

Q: Sulfur Chlorine What is the name of this atom? Argon Potassium

A:

Q: Na CI These 2 elements are in the same Period, what Period would it be? 1 18 2

A: Sodium (Na) electronic configurations [ Ne] 3s1 , Last electron is in  3S ,So principal  quantum…

Q: Match the correct isotope pairs: Atom A (5 protons, 5 neutrons, 5 electrons) Atom B (6 protons, 6…

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

Q: SUB ATOMIC PARTICLES WORKSHEET Location in the atom Charge Mass Importance to the atom Proton…

A: -> There are three subatomic particles : proton , neutron and electron.Two of subatomic particles…

Q: Question 4 of 10 Please write the electron configuration of the following elements: Copper Sodium…

A:

Q: predict the charge of an element based on it's position on the periodic table P  Na S  Cl  Mg…

A:

Q: Complete the table below, using the diagram of an atom shown at right. Properties of subatomic…

A: Protons, neutrons, and electrons are the fundamental building blocks of atoms, the tiny building…

Q: Complete the following table for an isotopically labeled atom or ion: Complete the following table…

A: Given incomplete table is :  Complete the given table ?  Number of protons (p) = Atomic number (Z)…

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: Which statement is true of the atom with an electron configuration of 1s2 2s2 2p6 3s1? This is the…

A: The electron configuration 1s2 2s2 2p6 3s1 corresponds to the element sodium (Na), which has 11…

Q: OWng WOIRSheet. Please keep in mind that the isotope represented by each space may NOT be the most…

A:

Q: Determine the number of neutrons, protons, and electrons for a bromide ion that has a mass number of…

A: Atomic symbol of bromide ion = Br- Mass number = 78  Number of(protons + neutrons)= mass  Atomic…

Q: lon Practice Set 1. What is an ions an atom that G positic Or 2. Use a periodic table to complete…

A:

Q: Current modern atomic theory is based on which of the following? Quantum Model Rutherford…

A: Now a day we are using modern atomic theory. This theory consists of current model of the atom…

Q: Answer the following questions. 1. What is the effective nuclear charge for strontium. Calculation:…

A: It is  the attractive positive charge of nuclear protons acting on valence electron.

Q: Question attached

A: Both sodium and potassium are alkali metals. Similarities: Both can form a monovalent cation. Both…

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: Match: 1. An atom's mass number mathematically equals 2. The total number of electrons in a(24Cr+³…

A: Here we are required to match the statement in column A and column B.

Q: 31

A: Atomic number is same as number of protons.For a neutral atom, number of protons is same as number…

Q: Which atoms' highest energy electrons have the greatest effective nuclear charge?   Question 2…

A: The effective nuclear charge is the net positive charge experienced by an electron in a…

Q: Which of the following statements accurately describes electrons? Multiple Choice   They are found…

A: As per Bartleby guidelines, tutors are allowed to answer first three multiple choice questions.…

Q: A chemist is identifying the elements present in a sample of seawater. What characteristic of an…

A: i think The number of proton is essential for the identity of the element because it gives you a…

Q: H = 2.1 Li = 1.0 Na = 1.0 K = 0.8 H-C=O Be = 1.5 H Mg = 1.2 Ca = 1.0 B = 2.0 Al = 1.5 Ga = 1.6 C =…

A:

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

A:

Q: QUESTION 12 An isotopes of an element occurr with equal frequency. O True O False

A: Applying definition of isotope.

Q: Determine the number of protons, neutrons, and electrons in the following: O p= 18 n = 22 e = 40 O…

A: We should know the representation of an element the bottom one written represents the atomic number…

Q: Incorrect. In each chosen pair, is the atomic mass higher for the first element listed on the…

A: Atomic Masses : Atomic mass, also known as atomic weight, is the average mass of atoms of an…

Q: What will be the charge of an atom that has gained 3 electrons? Group of answer choices +3 -3 -1 0

A: There are 2 types of ions : 1. Cation 2.Anion   When an atom gains an electron , the net charge on…

Q: Use a periodic table to complete the following. submitted Name mercury scandium carbon Elements…

A: Atomic number is the number of protons present in an element.

Q: Which element do you expect to have properties similar to chlorine? Group of answer choices Nitrogen…

A: In periodic table the elements present in the same group have same valence electronic configuration…

Q: location in atom charge mass proton neutron electron

A: Question based upon structure of atom.explain the properties of sub-atomic particles.

Q: Use the given set of statements to identify a specific atom. Write the symbol for the atom,…

A:

Q: Parts of an atom worksheet Complete the following table for each atom. Then draw the Bohr-Rutherford…

A: The objective of the question is to complete the given table regarding the parts of an atom.An atom…

Q: What is wrong with this model ?

A: Atom consist of nucleus that consist of protons and neutrons. Electrons revolve around nucleus.…

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.