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Unit 1 Chapter 2

Assessment Quiz Connect

QuestionAnswer
The chemical properties of an atom are determined by its _________blank. electrons
The bonding properties of an atom are determined by its _________blank. electrons
________blank account for 98.5% of the body's weight. Carbon, oxygen, hydrogen, nitrogen, calcium, and phosphorus
Na (atomic no. 11) reacts with Cl (atomic no. 17) to become stable. In the reaction, Na will _________blank, while Cl will _________blank. Na lose electron while CL gain electron to form a stable ionic bond
Oxygen has an atomic number of eight. When two oxygen atoms come together, they form a(n) _________blank bond. nonpolar covalent
The most abundant element in the human body, by weight, is _________blank. oxygen
_________blank differ from one another in their number of neutrons and atomic mass. Isotopes
Oxygen has an atomic number of 8 and an atomic mass of 16. How many valence electrons does it have? 6
An atom with 12 electrons, 13 neutrons, and 11 protons is a(n) _________blank. anion cation: more proton than electrons anion- more electrons than protons
Sodium has an atomic number of 11 and an atomic mass of 23. Sodium has _________blank. 2 neutrons and 11 protons
Created by: Gluis5974
 

 



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