12, Which of the statements is not correct about the element germanium? Group of answer choices A, It is a metal. B, It is in group 4A. C,It has properties most similar to siicon. D, It is in period 4.

Q: You have discovered a new element - Bluehenium (Bl).  It has two naturally occurring isotopes 68Bl…

A:

Q: In which set of elements would all members be expected to have very similar chemical properties?

A: Cu, Ag, Au is the correct option.  Elements belonging to the same group of similar chemical…

Q: Bromine is the only nonmetal that is a liquid at room temperature. Consider the isotope bromine-81,…

A: The isotope given is 8135Br.

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

A: The average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by…

Q: In the following drawing, the green spheres represent atoms of a certain element. The purple spheres…

A: In the given chemical change, the starting materials consist of four green spheres and two purple…

Q: Magnesium and calcium are metals in the same group on the periodic table. Which statement is true…

A: We are to compare the properties of elements of same group, magnesium and calcium. The elements in…

Q: e percentage abundance

A:

Q: What is the relative atomic mass of the element that consists of the following isotopes in the…

A: Given,

Q: A particular element exists in two stable isotopic forms. One isotope has a mass of 34.969 u (75.77%…

A: Given,Mass of one isotope (m1) = 34.969u.Abundance = 75.77% = 0.7577.Mass of second isotope (m2) =…

Q: Sketch an atom (not to scale) of boron-12, using p for protons, n for neutrons, and e for electrons.…

A: This problem is based on atomic structure chapter . Here we will be discussing about the radioactive…

Q: For the following questions determine the percent abundance of each isotope. The periodic table is…

A: Given Two isotope Oxygen - 16(smaller isotope)      Atomic mass = 16Oxygen - 18(larger isotope)…

Q: Consider an element Z that has two naturally occurring isotopes with the following percent…

A: average atomic mass= ∑%abundant×Molar mass/100 using this we can calculate the average atomic mass…

Q: Three naturally occurring isotopes of an element are shown in the models below. What do the isotopes…

A: Isotopes are the atoms of same element having same atomic number (Z) but different mass number (A).

Q: (a) chlorine-35 protons electrons neutrons (b) palladium-104 protons electrons neutrons (c)…

A: Atomic number of a atom is equal to the number of protons present in it. The number of protons are…

Q: 10. Platinum has six isotopes: 1⁹0Pt, 192Pt, 194Pt, 195Pt, 196Pt, and 198Pt. The natural abundances…

A: We need to find the Average atomic mass of platinum from the given data of atomic mass of Isotopes…

Q: Gallium has two naturally occurring isotopes. One of them, gallium-69, has a mass of 68.925581 u and…

A: Gallium has two naturally occurring isotopes. Mass of Gallium-69  = 68.925581 u Percent Isotopic…

Q: Rubidium has two naturally occurring isotopes. The elemental mass of Rb is 85.4678 u. If 72.165% of…

A: Given: Rubidium has two naturally occurring isotopes. The elemental mass of Rb = 85.4678 u The…

Q: Zinc has five naturally occurring isotopes with an average mass of 65.39 amu. If two isotopes,…

A: To answer: Which pair of isotopes will have the highest abundances? 64Zn, 63.9291 amu and 66Zn,…

Q: There are only two naturally-occuring stable isotopes of boron. The mass and natural abundance of…

A: The average atomic mass of element is equal to the product of the masses of the isotope and its…

Q: description An element in Period 1 and Group 34. A nonmetal in Group 6A A noble gas with a higher…

A:

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: 1.)An atom of sodium contains 11 electrons, 11 protons, and 12 neutrons. What is the atomic number…

A: You have posted multiple questions, according to guidelines I am solving first one. If you want…

Q: A sample of lithium consists of 400 atoms. 30 atoms are the isotope Lithium-6 (6.015 amu) and 370…

A: Calculation of average atomic mass using % abundance of isotopes:

Q: An atom has a diameter of 3.00 Å and the nucleus of that atom has a diameter of 7.50 × 10-5 Å.…

A:

Q: Element X has 6 isotopes. What is the average atomic mass? =) Isotope 1 has a mass of 88 with a…

A: Data given: Mass of isotope 1, m1 = 88, Relative abundance of isotope 1, r1 = 11% Mass of isotope 2,…

Q: OBo and F have the same number of neutrons. O"c and "N are isotopes of each other because their mass…

A: Atomic number = number of protons =number of electrons (for neutral element) Atomic mass = number of…

Q: b) Calculate the number of protons, electrons and neutrons that the element Xy have. www. Protons=…

A: Given : For XyMetal  Number of electrons = 56  Number of protons = 56 Number of neurons = 44

Q: An unknown element is determined to have two naturally occurring isotopes. Isotope 1 is 68.11%…

A: Given,Isotope 1 is 68.11% abundant and has a mass of 68.925580 amu, and isotope 2 has a mass of…

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.