Atomic Structure
Where are the electrons found in an atom?
In the orbitals around the atom
Which energy level starts filling first? 1s or 2s?
1s
What do two positive charges do? Repel or attract?
Repel
What element is He?
Helium
How many blocks are there?
4
What is found inside the nucleus?
Protons and neutrons
What does the number of protons in the nucleus determine?
Atomic number
These objects pull on certain metals like iron?
Magnets
How many periods are there?
7
What are all of the blocks?
S, d, p, f
What is the charge of protons?
Positive
After 1s do the electrons go to 2s or 2p?
2s
What group of elements is nonreactive?
The noble gases
Properties of both metals and non-metals are called what?
Metalloids
What block is on the left side of the periodic table and contains the alkali metals?
S block
What is the charge of neutrons?
Neutral
What is the atomic number of 1s2 2s2 2p6 3s1?
11
What type of bond forms when one atom gives up it's charge for another atom?
Ionic bond
What number determines the elements identity and it's position on the periodic table?
Atomic number
What is the often separated block?
F block
Who developed the Plum Pudding Model of an atom?
JJ Thomson
What is the maximum number of electrons one S orbital can hold?
2
What reactive, odorless gas makes up the majority of the universe?
Hydrogen
How many elements are there?
118
What is the middle block of the periodic table?
D block