First 40 Elements Quiz
Questions: 16 · 10 minutes
1. Which element comes immediately before zirconium in atomic-number order?
Strontium
Rubidium
Niobium
Yttrium
2. Which symbol represents iron?
Ir
Fe
I
In
3. In the formula LiF, what element is represented by Li?
Lithium
Fluorine
Helium
Beryllium
4. Which element has the symbol K?
Krypton
Potassium
Calcium
Cobalt
5. A neutral atom has 17 protons. Which symbol identifies its element?
Cl
Ar
S
K
6. A technician needs the symbol for silicon rather than sulfur. Which symbol should be selected?
S
Sc
Si
Se
7. A metal sample is identified as chromium. Which symbol belongs on its label?
C
Cm
Cr
Co
8. Which statement correctly compares magnesium and aluminum in atomic-number order?
Magnesium comes immediately after aluminum.
They have the same atomic number but different symbols.
Two elements occur between magnesium and aluminum.
Aluminum comes immediately after magnesium.
9. Which element has atomic number 8?
Nitrogen
Oxygen
Fluorine
Neon
10. Which of these elements among the first forty is a noble gas?
Bromine
Selenium
Krypton
Germanium
11. What is the chemical symbol for sodium?
Nd
S
N
Na
12. An atom contains 30 protons. Which element is it?
Copper
Gallium
Nickel
Zinc
13. In atomic-number order, which element comes directly after argon?
Potassium
Calcium
Chlorine
Scandium
14. A sample container is marked Co. Which element should be recorded in the inventory?
Carbon
Copper
Cobalt
Chromium
15. A materials inventory uses the symbol Zr. Which element is being listed?
Zinc
Zirconium
Rhodium
Radon
16. A nutrition label lists the mineral symbol Ca. Which element does it mean?
Calcium
Carbon
Cadmium
Chlorine