How many electron shells does a Potassium element have?
Answer
2
3
4
5
Question 6
Question
How many electron shells does an Aluminum element have?
Answer
1
2
3
4
Question 7
Question
Select all the elements from the following list which are in group 3A of the periodic table?
Answer
B
Al
Mg
Na
Ga
Question 8
Question
Associate each of the following descriptions with its category of elements:
Usually reacts to acids and corrodes [blank_start]Metals[blank_end]
7 elements that are semi-conductors [blank_start]Metalloids[blank_end]
Category that is mostly formed of gases at room temperature and include Hydrogen [blank_start]Non-metals[blank_end]
Answer
Metals
Metalloids
Non-metals
Question 9
Question
Give the symbol of the element that has 2 electron orbits and has 6 electrons on its last shell. [blank_start]O[blank_end]
Answer
O
Question 10
Question
Give the symbol of the element that has 3 electron shells and 7 valence electrons. [blank_start]Cl[blank_end]