In an atom of Oxygen with an atomic mass of 17 and a atomic number of 8, how many protons, neutrons, and electrons does it have?
8 protons, 9 neutrons, 8 electrons
In the Bohr diagram for chlorine, how many electrons are in each energy level?
1st - 2
2nd - 8
3rd - 7
What is the electron dot structure for Neon?
8 dots
What type of element is conductive?
metals
True or False - A useful scientific model must be workable and give useful answers to questions?
True
In an element of sodium with an atomic mass of 23 and an atomic number of 11, how many protons, neutrons, and electrons does the atom have?
11 protons, 12 neurons, 11 electrons
In the Bohr diagram for neon, how many electrons are in each energy level?
1st: 2
2nd: 8
3rd: 8
What is the electron dot structure for calcium?
2 dots
What type of element has few valence electrons?
metal
What is the state of matter of metals under standard conditions?
solid
Put the following in order of increasing radius: Si, Na, P.
Na, Si, P
In the Bohr diagram for aluminum, how many electrons are in each energy level?
1st - 2
2nd - 8
3rd - 3
1 dot
Which type of element is a good insulator?
nonmetal
How does the size of an atom's nucleus compare to the total size of the atom?
it is much smaller
Put the following in order of increasing radius: As, N, Bi.
N, As, Bi
In the Bohr diagram for magnesium, how many electrons are in each energy level?
1st - 2
2nd -8
3rd - 2
What is the electron dod structure for aluminum?
3 dots
Which type of element has a metallic luster?
metal
Define an element.
one kind of atom
Put the following in order of increasing metallic properties: Cs, Li, Fr.
Li, Cs, Fr
In the Bohr diagram for nitrogen, how many electrons are in each energy level?
1st - 2
2nd - 5
What is the electron dot structure for nitrogen?
5 dots
What type of element is a semiconductor?
metalloid
Compare and contrast nuclear fusion and nuclear fission.
nuclear fusion - small nuclei combine to form larger nuclei, energy is given off
nuclear fission - large nucleus splits into smaller nuclei, energy is given off