how to find the amount of neutrons in moles within a sample of silicon-30 and having a mass of 68.7

Q: Estimate the optimal number of neutrons for a nucleus containing 70 protons.

A: The neutrons and protons, the contents making the nucleus of an atom determine its stability.…

Q: Determine the charge and made of nuclei in amu made up of the following: 6 protons and 6 neutrons…

A: 1) The nuclei is having 6 protons and 6 neutrons Since the charge of proton is +1 and charge on…

Q: Among these numbers, If each atom acquired two more neutrons, what element would each of these be?…

A: There are basically 3 sub-particles present in an atom-  1- electron 2- proton 3- neutron

Q: What is the mass number for an atom of mercury containing 80 protons and 118 neutrons?

A: Given, number of protons = 80 Number of neutrons = 118

Q: 72 For the elemental symbol Ge, how many neutrons are present?

A: We are given  G3272e mass number=72 Atomic number=32 atomic number = number of proton=32

Q: 2.21 Calculate the number of neutrons of 23°Pu.

A: Number of neutrons is given by the difference of mass number and atomic number.

Q: In _______, a negatively charged electron is ejected from the unstable nucleus, converting a neutron…

A: Stability of the nucleus is generally influenced by 3 factors- Mass Defect: greater mass defect,…

Q: When does the number of Neutrons vary?

A: An atom consits of the electron,proton and neutron. The atomic mass of the atom depends upon the…

Q: Atomic number for Uranium is 92 How many protons, electrons, neutrons in Isotope U-92?

A: Answer - According to the question - Atomic no. of uranium, Z=92    No. of protons =Z=92   No. of…

Q: Arrange the following subatomic particles in order ofincreasing mass: neutron, electron, and proton.

A: The masses of neutron, proton, and electron are; mneutron=1.67493×10-27 kgmproton=1.67262×10-27…

Q: 23. What is the percent natural abundance of isotopes?

A: Atoms having the same atomic number but different mass numbers are known as the isotopes of each…

Q: A common isotope of Li has a mass number of 7. The atomic number of Li is 3. How can this…

A: The lithium atom has atomic number three, and the number of protons in the nucleus of lithium is…

Q: neutron

A: We know that neutron is a particle present in nucleus along with proton  or we can say that

Q: the oxygen isotope with 7 neutrons

A:

Q: Which particles account for most of an atom’s mass?

A: Atoms are the fundamental unit of matter consisting of neutrons, protons and electrons.

Q: A helium nucleus has two protons and two neutrons. How many electrons does it take to equal the mass…

A:

Q: How is the mass number related to the number of protons and neutrons an atom has?

A: The nucleus of an atom contains three sub-atomic particles. These are protons, neutrons and…

Q: What is the atomic number of an element whose mass number is 78, which contain 50 neutrons per atom?

A: The atomic number of an element represents the total number of protons present in the nucleus of the…

Q: What does the nucleus of an atom consists of?

A: In an atom, three fundamental particles are present, proton, electron, and neutron.

Q: An element with 11 neutrons, 11 protons, and 11 electrons would have a mass number of _____?

A: The total number of neutrons and protons present in a nucleus is known as mass number.

Q: What is the mass number of an atom of calcium that has 21 neutrons?

A: We know ,  Mass number of an atom = number of proton + number of neutron

Q: Mass number 246; 156 neutrons symbol

A: Mass number is the sum of number of protons and neutrons in an atom.  Atomic number is the number is…

Q: Calculate the number of atoms of Zn in a sample with mass = 2811 amu.

A: We have to predict the number of atoms of Zn.

Q: Magnesium has three isotopes with mass numbers 24, 25, and 26. (a) Write the complete chemical…

A: Atomic number (Z) is defined as a number of protons present in an atom.  In a neutral atom number of…

Q: An atom has a +3 charge a mass # of 42 and 20 neutrons. What is the amount of electrons it has?

A:

Q: has a mass about the same as that of a proton has a-1 charge is found in the nucleus is attracted to…

A:

Q: Describe how the atomic and mass numbers change, with at least one specific example?

A: An atom has a nucleus situated at the center and the electrons are surrounding it. The nucleus has…

Q: an isotope that has the atomic number 53, atomic mass 127 and a charge of "-1" determine the number…

A: Elements have same atomic number but different mass number is known as Isotopes

Q: Isotopic elements contain the same number of neutrons

A: No, Isotopic elements doesn’t contain the same number of neutrons. So the above  statement (…

Q: In an atom, the mass number gives the number of ________ and _________ in the nucleus. Fill in the…

A:

Q: Boron has only 2 naturally occuring isotopes. The mass of boron-10 is 10.01294 and the mass of…

A: Given : Mass of boron-10 is 10.01294 amu and boron-11 is 11.00931 amu. Assuming abundance of…

Q: Element "X" has a mass# of 53. How many neutrons does it have if its atomic# is 27

A: According to the answering guidelines, I'm posting the solution for the first question. Kindly post…

Q: How many neutrons are present in the nitrogen isotope with a mass number of 15

A: How many neutrons are present in the nitrogen isotope with a mass number of 15.

Q: How many neutrons are there in an atom of iron with a mass number of 52?

A:

Q: how to rank the isotopes in order of increasing number of neutrons

A:

Q: An isotope of xenon has an atomic number of 54 and contains 77 neutrons. What is the xenon isotope’s…

A:

Q: What is the overall charge of ^65Cu

A: An atomic number of an atom is equal to the number of protons in it. The atomic number is…

Q: How many neutrons are in uranium

A: Isotopes: The atom has same atomic number but different mass number is called isotope. uranium is…

Q: Atomic o Mass Number of Name uon lo Symbol Number Neutrons W. Number 8. 2raon ls. 1sd: bozogorq 10 6…

A: Atomic number of an atom is equal to the number of protons present in it. It is written in the…

Q: ow to describe isotopes in my own words

A: By using definition of isotopes.

Q: What two particles are used to determine the mass number of an atom?

A: Given a three points  1-           proton 2-          neutron 2-          electron Determined the…

Q: Silver occurs as two isotopes with atomic masses 106.9041 and 108.9047 amu. The first isotope…

A: The avg Atomic mass = (Atomic mass of isotope 1 X % of isotope 1 + Atomic mass of isotope 2 X % of…

Q: 13. Determine the number of neutrons for the following isotopes: A) Cr-53 Number of neutrons B) K-37…

A: First find out the atomic number for both elements and using that, find out number of neutrons in…

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.