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Question 11.Why did Rutherford concluded that gold atoms are mostly made of empty space?
Question 22.Which of the following scientists would say that atoms are like plum pudding, where the raisins are negative charges and the rest of the space has positive charges?
Question 33.Who stated that matter is made of atoms?
Question 44.Which of the following describes Rutherford's model of the atom?
Question 55.The electron configuration of Carbon is 1s^2 2s^2 2p^2. How many electrons does Carbon have?
Question 66.The energy of an orbital is represented by which letter?
Question 77.When working with atomic orbitals and quantum numbers, if n = 2, then l can be which of the following values?
Question 88.A(n) _____ is a representation of the arrangement of electrons in an atom of an element.
Question 99.What is the main difference between two isotopes of the same element?
Question 1010.The mass number of Nitrogen is 14, and its atomic number is 7. Therefore, Nitrogen has:
Question 1111.The atomic number of oxygen is 8. Therefore, oxygen atom has:
Question 1212.How many moles of silver (Ag) atoms are there in 3.80 x 10^24 silver atoms?
Question 1313.How many atoms are there in two moles of helium gas?
Question 1414.Which magnetic quantum numbers are possible for p orbitals?
Question 1515.Which of the following scientists discovered the electron charge using the 'oil drop experiment'?
Question 1616.Who first coined the term atom, meaning indivisible?
Question 1717.Which scientist is credited with discovering the charge of an electron?
Question 1818.What is the principal quantum number for the last electron that is added to potassium?
Question 1919.What is the largest principal quantum number that a calcium electron can have?
Question 2020.When an electron moves from an excited state to a ground state, it will _____.
Question 2121.Why should you avoid looking directly at magnesium burning?
Question 2222.Which is the symbol for the element that contains six electrons in each of its neutral atoms?
Question 2323.What should the electron configuration for neon (Ne) end with? Is it going to be a stable atom or a reactive atom?
Question 2424.A piece of pencil graphite (made of carbon atoms) has a mass of 0.12 grams. How many moles of carbon atoms are in the lead?
Question 2525.A computer chip contains 1.20 x 10^23 atoms of silicon. What is its mass?
Question 2626.X and Y are elements that are isotopes to each other. Which of the following is true about X and Y?
Question 2727.The average atomic mass or atomic weight found on the periodic table is _____.
Question 2828.Which element has a mass number of 12 and contains 6 neutrons?
Question 2929.The nucleus of an atom:
Question 3030.Which of the following was the instrument used for the discovery of the electron?
Atom Chapter Exam Instructions
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