Atomic Radius
What is atomic radius?
Atomic Radius is the distance between the nucleus and valence shell.
What is the atomic number?
Number of protons
What can find in the periodic table/what is the periodic table composed of?
Hint: It's in the title
Elements
What is the electronic configuration of Hydrogen?
Atomic number: 1
1
What charge do protons have?
Positive
What is are valence electrons?
The electrons in the outermost shell
Fill in the blank:
The _____ ____ tells you the number of electrons of an element in the periodic table
Atomic number
What is an element?
Elements are substances with atoms of the same atomic number
What is the electronic configuration for oxygen?
Atomic number: 8
2,6
What charge do electrons have?
Negative
What happens to the atomic radius from up to down in a group and why?
The atomic radius increases because of the increase of orbitals
What 2 particles do you add to get the mass number?
Protons + Neutrons
Who created the periodic table?
Dmitri Mendeleev
What is the electronic configuration for sodium?
Atomic Number: 11
2,8,1
What charge do neutrons have?
Neutrons
What happens to the atomic radius as you move from right to left in a period?
The atomic radius increases
How do you find the number of neutrons?
Hint: Use scientific vocabulary
Mass number - Atomic Number
What do elements of a group have in common?
Same number of valence electrons
What is the atomic number for neon?
2,8
Which is the smallest out of protons, neutrons and electrons?
If the diameter of an atom is 15nm, what is the atomic radius?
(This is based on circle theory and is hypothetical)
If you solve this without us giving you the formula of radius from diameter you get extra 500 points
7.5nm
What is atomic mass?
Hint: It is not the same as mass number
Atomic mass is an averaged mass of all the different isotopes of an element taking into account their abundance.
What is the highest atomic number in the periodic table?
118
What letter do you denote orbitals (energy levels) using?
Hint: Mention capital or lowecase
n
Can you divide protons and neutrons into smaller particles?
Part 2(Correct answer +500): What can you further divide a proton into?
Yes
2 up quarks, 1 down quark, 3 gluons