What do you mean by deuterium ? how it is symbolized ?

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

A: The isotopes are elements having same atomic number with different mass number, which have same…

Q: 4. What are the main ideas in the nuclear theory of the atom?

A: The main ideas of nuclear theory of an atom has to be given. The atomic model of Rutherford is also…

Q: How was the overall charge distributed in the plum pudding model?

A: The overall charge is evenly distributed in the plum pudding model.

Q: The metals belonging to Group 1A form ions with a charge of ...

A: Group 1A elements -> Hydrogen, Lithium, Sodium, Potassium, Rubidium, Cesium & Francium. All…

Q: An element 'A' contains 4 protons, 4 electrons and 5 neutrons. it is + 1. It becomes when it has 4…

A: For a neutral atom, the number of electrons or protons is equal to its atomic number. The mass…

Q: 19. What is an ion?

A: Ions constitute the ionic compounds. Sodium chloride is an example of ionic compound which contains…

Q: Is the statement consistent with Rutherford’s nuclear theory as it was originally stated? Why? The…

A: An atom can be considered as the smallest unit of any matter. An atom is composed of certain…

Q: A nitrogen atom has 7 protons, and the most common isotope of nitrogen has 7 neutrons. A radioactive…

A:

Q: The mass spectrometer may be used to A. Electrolyze water B. Detect the presence of isotopes C.…

A: We need to find where mass spectrometry can be used.

Q: Describe Thomson’s model of the atom. How might it account for the production of cathode rays?

A: To find: The Thomson's model of the atom.  How might it account for the production of cathode rays

Q: Explain the Properties of Protons ?

A: The properties of protons has to be explained.

Q: Out of the atomic number, atomic mass number, atomic weight, isotopes which one of these are unique…

A: Atomic number = It is equal to the number of protons present in the nucleus of an atom.Atomic weight…

Q: What letters are used to designate atomic number and mass number in isotopic notation of atoms?

A: There are different symbols are used to exhibit atomic Number and mass number of atoms. Atomic…

Q: What is the net electric charge of an ato

A: Electric charge is carried by protons and electrons in an atom.

Q: What does an atom become when the number of its protons exceeds the number of its electrons?

A: The subatomic particles of an atom are, Electrons (negatively charged) Protons (positively charged)…

Q: Explain the relationship between an atom’s number of electrons and its relative stability.

A: Octet rule:  An atom having eight electron in its outermost shell is said to be relatively more…

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: 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: atomic number 119 and mass number of 252  where would this element be placed? What period would it…

A: Ununennium   Ununennium, also known as eka-francium or element 119, is the hypothetical…

Q: 20. The atoms of the elements in Group 2 have the same (1) mass number (2) atomic number (3) number…

A: Both answer is given below

Q: Tennessine, element 117, is the most recently discovered element in the periodic table. Assuming it…

A: It is given that Tennessine is an element having an atomic number of 117 and is the recently…

Q: The identity of a nucleus is determined by its   A. proton #   B. radioactive intensity   C.…

A: Nucleus of an atom contains proton and neutron.

Q: What is the difference between atomic number and atomic weight?

A: The atomic number corresponds to the number of protons present in an atom. It is represented by Z.…

Q: What fundamental force is responsible for holding together the subatomic particles of an atomic…

A: There are various physical forces acting all around us. Four fundamental forces are listed below:…

Q: Atomic #- 10 Mass #- 20 # of p+ = # of n - # of e-D # of valence e Atom Symbol- Name of Atom

A: Atom contains sub atomic particles  such as  protons , electrons and neutrons

Q: This homework is going to center around a completely made up element Maplenium. This metal has a…

A: Given data,Density of Ml=31.284lbs/dm3Mass of Ml=8.22×10-2Kg=0.18122lbsDimensions of…

Q: Which element is a halogen? (a) Ne (b) O (c) Ca (d) I

A: The substances that have a tendency to occupy space are considered as matters. The matters can be…

Q: Define radioactive isotope

A: Isotopes are variants of a particular chemical element which differ in neutron number, and…

Q: How do the mass number and the average atomic mass differ for a particular element?

A: There is difference between mass number and average atomic mass.

Q: What charge would exist on chlorine (#17) after it reacts with hydrogen (#1)?

A: The correct option is(d) i.e partial negative. The electronegativity of H = 2.20  The…

Q: An atom of 131 I contains ________ protons.

A: An atom = 131I  Number of protons = ?

Q: What is used as basis for the better arrangement of elements in the periodic table and the key to…

A: Basis for the better arrangement of elements in the periodic table and the key to the discovery of…

Q: What are alums? Give examples other than potassium alum.

A: Double salts are the salts that dissociate into all its constituent ions completely. Example is Mohr…

Q: What element is x? O Mercury O Bromine O Rhodium O Xenon O Ytterbium

A:

Q: what are 2 incompatible elements? are calcium and chlorine incompatible?

A: Rubidium, Barium, Uranium, and Lanthanum are incompatible elements.

Q: What is the differences between an Oxygen atom (16 amu, atomic number = 8) and a Calcium atom (46…

A: Oxygen atom = 16amu Calcium atom = 40amu  Metal- it have tendency to lose electron. Non metal - it…

Q: What do you mean by Hydrogen ?

A:

Q: Describe the basics of atomic structure, including ions and isotopes; and then how each of these…

A: Atomic structure refers to the structure of an atom comprising a nucleus (centre) in which the…

Q: The atomic radii of the isotopes of an element are identical to one another. However, the atomic…

A: 1. Isotopes of an element have the same atomic number but different mass numbers. For example:…

Q: Identify the element represented by each nucleus A through E as a metal, a nonmetal, or a metalloid.…

A: Given : symbol of proton and neutron

Q: What test could you perform to detect the presence of I‾ ion?

A:

Q: what are the properties of cathode rays and anode rays?

A:

Q: Do isotopes have the same chemistry among each other? Do they have the same electron configuration?

A: Isotopes of an element have same number of protons with different number of neutrons in the nucleus.…

Q: Based from the nitrogen test experiment, what is the test for nitrogen?

A: Analytical chemistry is branch of chemistry in which we deal with detection of element in organic…

Q: The atomic number indicates the total number of neutrons and protons in a nucleus the number of…

A: #1) For an neutral atom        Atomic No. = No. Of protons OR No. Of electrons         mass no. =…

Q: 14p 14 n

A: The Given atom is Silicon