subject
Chemistry, 03.09.2020 21:01 lindsaynielsen13

Question 1 (2 points) What are the three subatomic particles that make up an atom? Question 1 options: Nucleus, Electrons & Protons Protons, Electrons & Neutrons Protons, Neutrons & Nucleus Question 2 (1 point) Inside of the nucleus there are protons and neutrons. Question 2 options: True False Question 3 (1 point) Which statement below is true? Question 3 options: Neutrons are positive, Protons are negative, and Electrons are neutral Electrons are positive, Neutrons are negative, and Protons are neutral Protons are positive, Electrons are negative, and Neutrons are neutral Question 4 (1 point) The atomic number can tell us how many neutrons are in an atom. Question 4 options: True False Question 5 (2 points) The mass number is equal to which of the following? Question 5 options: Protons + Neutrons Protons + Atomic Number Neutrons + Electrons Protons - Neutrons Question 6 (1 point) In order to calculate how many neutrons are in an atom, you must subtract the mass number from the number of protons? Neutrons = Mass # - Protons Question 6 options: True False Question 7 (2 points) If I have an element with a mass of 56 and it has 26 protons, how many neutrons does it have? Question 7 options: 26 56 30 82 Question 8 (1 point) Isotopes are atoms with the SAME number of protons, but DIFFERENT numbers of neutrons. Question 8 options: True False Question 9 (3 points) Please have your periodic table of elements. An atom has 8 protons and 9 neutrons what is the chemical symbol for this isotope? Question 9 options: Flourine F-17 Oxygen O-17 Question 10 (2 points) How many protons and neutrons does iron-56 have? Question 10 options: 26 protons and 56 neutrons 26 protons and 26 neutrons 30 protons and 56 neutrons 26 protons and 30 neutrons Question 11 (1 point) Neil Bohr's model of the atom suggested that electrons are found in distinct paths. Question 11 options: True False Question 12 (2 points) Electrons closer to the nucleus have more energy. Question 12 options: True False Question 13 (2 points) Which of the following statements about valence electrons are true? Question 13 options: They are in the outermost orbital and have the least energy. They are in the outermost orbital and have the most energy. They are in the innermost orbital and have the most energy. They are in the innermost orbital and have the least energy. Question 14 (2 points) A specific, electrically neutral atom of boron has 5 protons, 5 electrons, and 6 neutrons. What is the mass number of this atom of boron? Question 14 options: 5 6 11 16 Question 15 (2 points) An atom has 17 protons and 18 neutrons. Which symbol represents that atom, including its mass number? Question 15 options: Cl-32 Cl-35 S-34 Ar-33 Question 16 (2 points) Given that oxygen has an atomic number of 8. How many protons and neutrons are in the isotope 16O, or oxygen-16? Question 16 options: 8 protons and 8 neutrons 16 protons and 16 neutrons 8 protons and 7 neutrons 16 protons and 8 neutrons Question 17 (3 points) Silicon (atomic number 14) has three isotopes: 28Si, 29Si, and 30Si. What is the number of protons in an atom of silicon with the highest mass number? Question 17 options: 30 29 14 16

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 22.06.2019 03:00
Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?
Answers: 2
question
Chemistry, 22.06.2019 09:30
Why do cells appear different in distilled water than they do in 10% salt water?
Answers: 2
question
Chemistry, 23.06.2019 05:30
For the reaction i2(g)+br2(g)←−→2ibr(g), kc=280 at 150 ∘c. suppose that 0.450 mol ibr in a 2.00-l flask is allowed to reach equilibrium at 150 ∘c. what is the equilibrium concentration of 2ibr, i2, br2
Answers: 1
question
Chemistry, 23.06.2019 06:30
What type of chemical reaction occurs between silver nitrate (agno3) and copper (cu)? the equation i was given is 2agno3 + cu —> 2ag+ cu(no3)2.
Answers: 1
You know the right answer?
Question 1 (2 points) What are the three subatomic particles that make up an atom? Question 1 option...
Questions
question
Social Studies, 20.07.2019 19:50
question
Mathematics, 20.07.2019 19:50
question
Physics, 20.07.2019 19:50
question
Mathematics, 20.07.2019 19:50
question
Biology, 20.07.2019 19:50
question
History, 20.07.2019 19:50
Questions on the website: 13722360