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Chapter 4
Question | Answer |
---|---|
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 |