color the most reactive metal group yellow and the most reactive nonmetal group green.
Question 33
33.
color the least reactive group red
Question 34
34.
Question 35
35.
In the Periodic Table, the vertical columns that extend up and down the Periodic Table are called
periods
groups
classes
Label the following diagram
Electrons
Neutrons
Protons
Nucleus
Electron cloud
Valence electrons
A
B
C
D
black arrow
E
Match different parts of the atom with the correct discription
Neutral charge /No charge.
Large mass of 1 amu
Located in the Nucleus
Located inside the nucleus
Negative charge
Large mass of 1 amu
located in the electrons cloud
amost no mass of 1/8000 amu
positive charge
Protons
Neutrons
Electrons
Which of these best describes one of the subatomic particles that could be found at location y in the model of an atom shown above?
It has mass but no charge.
b. It has no mass and a Negative charge.
c. It has a large mass and a negative charge.
d. It has no mass and an equal number of positive and negative charges.
Question 5
5.
atomic number for an atom of lithum
Question 6
6.
protons
Question 7
7.
mass number
Question 8
8.
neutrons
Question 9
9.
electrons
Question 10
10.
atomic number
Question 11
11.
protons
Question 12
12.
electrons
Question 13
13.
Mass number
Question 14
14.
Neutrons
5. Which element has an atomic number of 35 ?
Nitrogen
Bromine
Niobium
Neodymium
Which subatomic particle(s) are found in the nucleus?
beta particles
electrons
neutrons
protons
Which two subatomic particle(s) are the same size?
beta particles
electrons
neutrons
protons
The atomic mass of an element tells the total number of subatomic particles found inside the nucleus of that atom, therefore it tells the total number of ____ + ____ inside that atom.
protons, electrons
neutrons, protons
electrons, neutrons
which model represent the correct model of Lithium
model W
Model Y
Model X
Model Z
Select everything true about Aluminium.
1. an atom of Aluminum Al has 13 protons and 13 electrons________
2. an atom of Aluminum Al has a mass number of 26
an atom of Aluminum Al has an equal number of protons and neutrons
atom of Aluminum has 13 Neutrons
an atom has a mass number made up of protons and neutrons
As you are moving down the groups ehat number stays the same?
protons
valence electrons
Energy shells
electrons
As you are moving across periods which number increases ? select more than one answer
protons
valence electrons
Energy shells
Electrons
Atomic number
As you are moving across a period which number stays the same ?
protons
valence electrons
Energy shells
Electrons
Atomic number
Question 24
24.
which element is represented by atom A
Question 25
25.
which element is represented by atom B?
Question 26
26.
which element is represented by atom C?
Question 27
27.
Question 28
28.
Rank the folowing elemets as Metals, Nonmetals or Metalloids.