periodic table of the elements quiz
name:
fill in the blanks with the atomic
symbols of the first 20 elements.
and then write the element names
in the blanks below.
key:
element name
atomic number
symbol
atomic weight
(the table content includes element symbols, atomic numbers, atomic weights, etc. for elements like sc, ti, v, cr, mn, fe, co, ni, cu, zn, ga, ge, as, se, br, kr, y, zr, nb, mo, tc, ru, rh, pd, ag, cd, in, sn, sb, te, i, xe and their corresponding atomic numbers and weights. there are also blanks numbered from (1) to (20) for filling in element names or symbols.)

Question

Accepted Answer

To solve this, we recall the first 20 elements of the periodic table (by atomic number):

1. Atomic number 1: **Hydrogen (H)**
2. Atomic number 2: **Helium (He)**
3. Atomic number 3: **Lithium (Li)**
4. Atomic number 4: **Beryllium (Be)**
5. Atomic number 5: **Boron (B)**
6. Atomic number 6: **Carbon (C)**
7. Atomic number 7: **Nitrogen (N)**
8. Atomic number 8: **Oxygen (O)**
9. Atomic number 9: **Fluorine (F)**
10. Atomic number 10: **Neon (Ne)**
11. Atomic number 11: **Sodium (Na)**
12. Atomic number 12: **Magnesium (Mg)**
13. Atomic number 13: **Aluminum (Al)**
14. Atomic number 14: **Silicon (Si)**
15. Atomic number 15: **Phosphorus (P)**
16. Atomic number 16: **Sulfur (S)**
17. Atomic number 17: **Chlorine (Cl)**
18. Atomic number 18: **Argon (Ar)**
19. Atomic number 19: **Potassium (K)**
20. Atomic number 20: **Calcium (Ca)**

### Filling the Blanks (Assuming the first 20 positions, ordered by atomic number 1–20):
(1) H (Hydrogen)
(2) He (Helium)
(3) Li (Lithium)
(4) Be (Beryllium)
(5) B (Boron)
(6) C (Carbon)
(7) N (Nitrogen)
(8) O (Oxygen)
(9) F (Fluorine)
(10) Ne (Neon)
(11) Na (Sodium)
(12) Mg (Magnesium)
(13) Al (Aluminum)
(14) Si (Silicon)
(15) P (Phosphorus)
(16) S (Sulfur)
(17) Cl (Chlorine)
(18) Ar (Argon)
(19) K (Potassium)
(20) Ca (Calcium)

### Step-by-Step Explanation (for clarity):
#### Step 1: Recall the first 20 elements (atomic number 1 to 20) and their symbols.
The first 20 elements (by atomic number) are:
1. Hydrogen (H)
2. Helium (He)
3. Lithium (Li)
4. Beryllium (Be)
5. Boron (B)
6. Carbon (C)
7. Nitrogen (N)
8. Oxygen (O)
9. Fluorine (F)
10. Neon (Ne)
11. Sodium (Na)
12. Magnesium (Mg)
13. Aluminum (Al)
14. Silicon (Si)
15. Phosphorus (P)
16. Sulfur (S)
17. Chlorine (Cl)
18. Argon (Ar)
19. Potassium (K)
20. Calcium (Ca)

#### Step 2: Match each atomic number (1–20) to its symbol and name.
For example, atomic number 1 → H (Hydrogen), atomic number 2 → He (Helium), etc.

### Final Answers (Filled Blanks, e.g., for positions 1–20):
(1) H (Hydrogen)
(2) He (Helium)
(3) Li (Lithium)
(4) Be (Beryllium)
(5) B (Boron)
(6) C (Carbon)
(7) N (Nitrogen)
(8) O (Oxygen)
(9) F (Fluorine)
(10) Ne (Neon)
(11) Na (Sodium)
(12) Mg (Magnesium)
(13) Al (Aluminum)
(14) Si (Silicon)
(15) P (Phosphorus)
(16) S (Sulfur)
(17) Cl (Chlorine)
(18) Ar (Argon)
(19) K (Potassium)
(20) Ca (Calcium)

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QUESTION IMAGE

Question

Explanation:

Filling the Blanks (Assuming the first 20 positions, ordered by atomic number 1–20):

Step-by-Step Explanation (for clarity):

Step 1: Recall the first 20 elements (atomic number 1 to 20) and their symbols.

Step 2: Match each atomic number (1–20) to its symbol and name.

Final Answers (Filled Blanks, e.g., for positions 1–20):

Answer:

Filling the Blanks (Assuming the first 20 positions, ordered by atomic number 1–20):

Step-by-Step Explanation (for clarity):

Step 1: Recall the first 20 elements (atomic number 1 to 20) and their symbols.

Step 2: Match each atomic number (1–20) to its symbol and name.

Final Answers (Filled Blanks, e.g., for positions 1–20):