The atomic symbols of the first twenty elements in the periodic table are shown in Figure 3 - Edexcel - GCSE Chemistry - Question 2 - 2016 - Paper 1
Question 2
The atomic symbols of the first twenty elements in the periodic table are shown in Figure 3.
(i) From the position of beryllium, Be, in the periodic table, berylliu... show full transcript
Worked Solution & Example Answer:The atomic symbols of the first twenty elements in the periodic table are shown in Figure 3 - Edexcel - GCSE Chemistry - Question 2 - 2016 - Paper 1
Step 1
From the position of beryllium, Be, in the periodic table, beryllium is most likely to be a
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Answer
Beryllium (Be) is located in group 2 of the periodic table, which is comprised of metals. Therefore, the correct answer is:
A. metal
Step 2
Give the symbol of the element that is in period 2 and in group 3.
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Answer
The element in period 2 and group 3 of the periodic table is boron. Thus, the symbol is:
B
Step 3
State the number of electron shells in an atom of potassium, K.
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Answer
Potassium (K) is located in period 4 of the periodic table. Therefore, it has 4 electron shells.
