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Chapter 4

QuestionAnswer
T or F The charge on the proton and electron are exactly the same but opposite. True
When an atom loses or gains an electron, it makes a(n) Ion
T or F Protons and electrons attract each other. True
This atom has just 2 electrons in the first energy level. Helium
This atom has 12 protons in its nucleus. Magnesium
This atom has 2 electrons in its first energy level, 8 in its second level, and 5 in its third energy level. Phosphorus
What is the negatively charged part of the atom that surrounds the nucleus? Electron
The atomic number of an atom is equal to the number of ____ in the nucleus. Protons
T or F A covalent bond can only happen if 1). there is a strong attraction between electrons and 2). there is room in each atom's outer energy level. True
This atom has 7 more protons than Carbon. Aluminum
This atom has 2 electrons in its first energy level and 8 in its second energy level. Neon
This atom is directly below the atom with 2 electrons in its first energy level and 1 electron in its second energy level. Sodium
What is the positively charged part of the atom found in the nucleus? Proton
The first energy level is closest to the nucleus and will hold how many electrons? 2
T or F Covalently bonded atoms are less stable than they were as separate atoms. False
When positive and negative ions attract, they form what kind of bonds? Ionic
This atom has an atomic number of 3. Lithium
Electrons surrounding an atom are located in regions around the nucleus called what? Energy levels
What part of the atom is found in the nucleus and has no charge (neutral)? Neutrons
A covalent bond is made when atoms share what? Electrons
Created by: cscienceteacher