Atomic Structure
What is the charge of an electron
Negative
What is the charge of an atom with 14 protons and 13 electrons
+1
How many neutrons are in an atom number of 9 and an atomic mass of 18
9 neutrons
How many periods are on the periodic table
7
Draw a helium atom
He with 2 dots around it
What is the charge of a neutron
Neutral
What is the charge of an atom with 17 protons, 17 electrons and 19 electrons
-2
How many neutrons are in an atom with an atomic number of 10 but an atomic mass of 25
15 neutrons
How many groups are on the periodic table
18
Draw the lewis dot structure of Neon
Ne with 8 dots around
What subatomic particle(s) are in the nucleus
Protons, Neutrons
An atom has 14 protons, 18 neutrons and 14 electrons what is the charge
Neutral
Isotopes are atoms with a different number of _____
Neutrons
How many valence electrons does an atom have in group 2
2
Draw the Lewis Dot Structure of Barium (Period 6 , Group 2)
Ba with 2 dots around it
Where are the electrons located
Energy levels / Electron clouds
How many electrons does a Chlorine atom have if its atomic number is 17 and it has a +2 charge?
15 electrons
Carbon 14 has an atomic number of 6 and a mass of 14. How many neutrons are in this atom.
8 neutrons
How many valence electrons are in group 18
8
Draw a neutral Chlorine atom
17 electrons
2 in the first shell , 8 in the second and 7 in the last shell.
What is the charge of the nucleus?
Positive
An atom with an atomic number of 82 and a charge of +2 has how many protons and electrons?
82 protons, 80 electrons
Selenium - 50 has an atomic number of 16 but a mass of 55. How many protons and neutrons are in this element?
16 protons, 34 neutrons
An atom has 7 valence electrons and fills up 2 energy levels. What is the group and period of this atom
Group 17 period 2
Draw a Carbon atom - atomic number of 6
And draw the Lewis Dot structure for Carbon
(Have to have both correct for points)
Atom - 2 in the first level, 4 in the second
Dot structure C with 4 electrons around it