On the interactive screen below. Click on ATOM. Make sure the windows for Element, Net charge and Mass number are open. Complete the following questions using the interactive.
Build each atom first using the interactive.
Question 1
1.
Question 2
2.
Question 3
3.
Question 4
4.
Question 5
5.
Question 6
6.
Question 7
7.
Question 8
8.
Question 9
9.
Question 10
10.
What is the electronic configuration of sodium?
This atom as 5 protons, 5 electrons and 6 neutrons. Which of the following is true?
The atomic number is 6 and the mass number is 11.
The atomic number is 5 and the mass number is 11
The atomic number is 5 and the mass number is 10
The atomic number is 6 and the mass number is 10
What is the net charge on an atom that has lost 3 electrons?
0
+3
-3
-1
+1
The atomic number of an atom is:
the number of electrons
the number of protons
the number of neutrons
the number of protons plus neutrons
The mass number of an atom is:
the number of electrons
the number of protons
the number of neutrons
the number of protons plus neutrons
An isotope:
has the same number of protons but different no's of neutrons
has the same number of neutrons but different no's of protons
has the same number of protons but different no's of electrons
has the same number of electrons but different no's of protons
If an atom has 6 protons and 7 neutrons, what is its mass number?
13
11
7
6
An atom has a net charge of +1. What could be true?
More neutrons than protons.
Equal protons and electrons.
Two more electrons than protons.
One more proton than electron.
Which part of an atom is responsible for chemical identity?
Protons
Neutrons
Valence shell
Electrons
How many electrons does a neutral atom with 15 protons have?