47. List the name and the atomic number of each element.(a) Mn(b) Ag(c) Au(d) Pb(e) S

Q: List the name and the atomic number of each element. (a) Mn(b) Ag(c) Au(d) Pb(e) S

A: In the periodic table, elements are arranged based on their similarities in properties. Each element…

Q: Static electricity is observed when whic part of the atom is transferred? a. Protons b. Neutrons I…

A: Static electricity is observed when electrons are transferred .  Naturally occurring static is…

Q: The nucleus, the massive center of an atom, contains which two particles?

A: Nucleus is the massive part of any atoms . It contains mostly all the mass any element. Nucleus was…

Q: Differentiate between different isotopes of an element?

A: A number of atoms of some elements have been identified, which have the same atomic number but…

Q: Give TWO reasons why aluminium metal was not commonly used till last century, even though it is one…

A: Two main reasons that elaborate the uncommon use of aluminum in the last century can be listed as…

Q: What is the number of electrons of the given element?

A:

Q: what is  the Periodic table of elements

A: Over the years, many atoms and molecules are discovered by scientists. It became tedious for…

Q: Some properties of element Y are listed. It reacts with hydrochloric acid to make hydrogen gas. It…

A: 1. Mg +2HCl  → MgCl2  + H2 2. Mg  + H2O → MgO + H2 Magnesium burns in steam to produce white…

Q: Which of the following is an implication of Thomson’s observation that the typeof metal used to make…

A: Cathode rays are defined as the beam of negatively charged particles that originate from negatively…

Q: Which two elements on the periodic table are in the same period?

A: By studying the periodic table we can easily find out the elements present in same period.  Periods…

Q: Elemental phosphorus is tetratomic. Why?

A: Phosphorous is a element with large atomic size.

Q: A sample of a uranium compound is found to be losingmass gradually. Explain what is happening to the…

A: Uranium is a radioactive element which disintegrates spontaneously.

Q: nt(central atom).

A:

Q: circles represent helium atoms; the dark circles represent argon atoms. Select one: a. b. d. It is…

A: Applying concept of partial pressure.

Q: Find the atomic weight for the element silver Ag

A: Atomic weight:The average atomic mass can be calculated by multiply the fraction by the mass number…

Q: Select all of the following elements that are categorized as non-metals. OA. Ag O B. K O C.B O D.S O…

A: Non metals : These are the elements which are placed to right corner of the periodic table and have…

Q: What is a proton ? what is a chemical?

A: A proton is a subatomic particle which is present in the nucleus of an atom along with the neutrons.…

Q: metal atoms tend to do ?

A: Metal atoms tends to loss electrons to form cation(positively charged.).

Q: A. What is the mass number of an atom of Iron ( atomic number 26) with 32 neutrons?  B. Is this…

A:

Q: 6. What is electrical charge?

A: The definition of electric charge has to be given,

Q: The number of neutrons in the nucleus of the isotope 22Na is

A: The number of neutrons

Q: 2.34 Describe Thomson's model of the atom. How might it ac- count for the production of cathode…

A: Thomson's model of atom is also known as plum pudding model. According to plum pudding model, atom…

Q: Process wherein light elements such as helium and hydrogen form.

A: Process by which, Light elements such as helium and hydrogen form is?

Q: In the early 1900s, Ernest Rutherford produceda beam of very small positive particles and directed…

A: The extremely small, invisible, and indestructible fundamental particle of matter is known as an…

Q: elements given below is of

A: Melting point depends upon crystal lattice system means if atoms of Element are smaller in size then…

Q: <p>Describe three typical properties of metals.

A:

Q: Matter is defined as ....... إجابتك Felite is إجابتك

A: 2. The term matter refers to anything that occupies space and has mass—in other words, the “stuff”…

Q: A shiny brown coloured element ‘X’ on heating in air becomes black in colour. Name the element ‘X’…

A: The required reaction is as follows:

Q: ny atoms a

A: The number of moles is determined as the mass of the substance upon its molar mass. The number of…

Q: element is 5 X 24 Which a chromium b) germanium iron D) barium

A:

Q: An atom has a very small nucleus surrounded by an electron "cloud." The figure below represents the…

A: The diameter of the nucleus is given that 2 mm. The electron cloud or diameter of atom is 200m. That…

Q: the element manganese (Mm

A:

Q: A) S B) Sn C) Sb D) As

A: As we know,in the periodic table,  same group elements show similar properties

Q: What is Leucippus contribution atomic theory?

A: Matter can be defined as any substance that has some mass and occupy space. Matter can be solid,…

Q: does hydrogen exist as an atomic element in the air?

A: Interpretation: Does hydrogen gas exist as an atomic element in the air is to be determined.

Q: Na and Br Cu and SO Pb and Cl K and S Sn" and F and and and and and and and Bal, AICI, Mg(NO₂), KOH…

A: Identify the cation, anion and adjust the subscripts of the cation and anion such that the net…

Q: atom economy of

A: Atom Economy is calculated by dividing mass of desired product divided by the sum of mass of all the…

Q: Groups of elements in the periodic table have similar O physical properties O crystal formations…

A: Elements belonging to the same group have same electronic configuration.  Hence, they participate in…

Q: the measured EA of Na is -53 KJ/mol. What is the physical meaning of the fact that the EA is a…

A: EA means the electron affinity .  The amount of heat is released when 1 electron is added to the…

Q: mass of an atom of gold in mm

A: Here we have to calculate the mass of gold in terms of mm( millimeter). Mass of gold = 196.96657…

Q: 11) Calculate the number of atoms of each element: 5Na,SO,

A: according to mole concept one mole of any species contains avagadro number of atoms,  molecule and…

Q: A(n) _________ reliablypredicts the behavior of matter, while a(n) _________ providesan explanation…

A: a). Hypothesis is a prediction or a suggested explanation of an observable phenomenon. It has not…

Q: Name the two isotopes for oxygen.

A: The species having same atomic number but different mass number (atomic mass) are termed as…

Q: 1. Compare some common physical properties of metals and non-metals.

A: Note - Since you have asked multiple questions, we will do the first question for you. If you want…

Q: What is the relationship between an isotope’s abundance in nature and an element’s atomic mass…

A: Isotopes are atoms of same elements which have same atomic number but different mass number.

Q: What is the number of atoms in element Pt?

A: The Pt symbol is used for the platinum and it is a member of the VIII B group thus it is a…

Q: Elements in group 7A are considered

A: There are total seven periods and eighteen groups in the modern periodic table where all the…

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.