Questão 1
Questão
How many electrons in Ca(2+)?
Questão 2
Questão
Electrons can only orbit nuclei in fixed orbits with specific characteristic energy levels.
Questão 3
Questão
Ionisation of an atom is the process in which the subatomic particle, the [blank_start]electron[blank_end], is removed. The outermost particle will have the [blank_start]least[blank_end] binding energy, and so will be most [blank_start]easy[blank_end] to remove. As the particles are taken away, the energy increases, increasing the amount of energy required.
Questão 4
Questão
Insert a number, eg 1, 4, 26, 32. If no electrons, put in 0.
How many electrons in each shell:
Magnesium:
1st: [blank_start]2[blank_end]
2nd: [blank_start]8[blank_end]
3rd: [blank_start]2[blank_end]
4th: [blank_start]0[blank_end]
5th: [blank_start]0[blank_end]
Questão 5
Questão
Insert a number, eg 1, 4, 26, 32. If no electrons, put in 0.
How many electrons in each shell?
Cl-
1st: [blank_start]2[blank_end]
2nd: [blank_start]8[blank_end]
3rd: [blank_start]8[blank_end]
4th: [blank_start]0[blank_end]
Questão 6
Questão
What atom/element is pictured below, and how many valence electrons does it have?
Present your answer in this format: name,#
Eg: hydrogen,25
Questão 7
Questão
What is the maximum number of electrons an atom can have in the 2nd shell?
[blank_start]8[blank_end]
Questão 8
Questão
What is the electronic configuration of Argon?
Eg: 6,9,12,14 (no spaces, just commas)
[blank_start]2,8,8[blank_end]
Questão 9
Questão
Which element is represented by this electronic configuration?
2,8,8,1
Responda
-
Calcium
-
Sodium
-
Potassium
-
Lithium
Questão 10
Questão
Which atom(s) can be represented by this electronic configuration?
2,8
Responda
-
F-
-
Na-
-
Mg+
-
Ne
-
Na+
-
Mg(2+)
-
Al(3-)