Verizon 7:27 AM 95% XAssignments from textbook.pdf Chapter 2 Name Row Date 1. A
ID: 140790 • Letter: V
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Verizon 7:27 AM 95% XAssignments from textbook.pdf Chapter 2 Name Row Date 1. A possible explanation for what one observes based on facts is known as 2. Write True or False for each statement below A)The space surrounding the nucleus of an atom is called the energy level B) The nucleus of an atom contains a neutron, a proton and an electron C). The subatomic particle without a charge is called a neutron D) The subatomic particle that forms the atomic number of an atom is the pr E) the number of protons is the same as the mass number of an element F) the number of electrons is always equal to the number of protons G) a negatively charged atomic particle is known as a neutron H) All the elements in the periodic chart are found in and useful to living thi 3. If an element has an atomic number of 6 and a mass number of 14, what is the nu of protons neutrons and electrons 4. What is the main difference between ionic bonds and covalent bonds 5. The identity of an element is determined by its 6. Stored energy is known as known as energy while energy due to motion energy 7. What are 5 different forms of energy and examples of each a. b. C. Complete this table Symbol Full name Potassium ron Open With PrintExplanation / Answer
1) hypothesis
2)
A)true. Electrons revolve in the energy levels called shells
B)false. Electrons revolve around the nucleus . They are not found in the nucleus
C) true. Neutrons are neither positively charged nor negatively charged
D)true. Atomic number is also called as proton number
E)false. Mass number is equal to number of protons and neutrons
F)true . Number of electrons or protons in an atom is called as atomic number
G)false. Neutron is neither negative nor positive
H) true. 118 elements are mentioned in the periodic chart
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