Question

periodic table search
name: aida...
using your colored periodic tables, regular periodic tables, and the periodic tables linked in canvas, answer the following questions:

1. which element is number 14 on the periodic table?
2. what is the element symbol for californium?
3. what is the element name with atomic symbol mo?
4. to which element group does argon belong?
5. find three elements whose symbols dont seem to match their names.
6. what is the atomic mass of carbon?
7. what do you call the element series from atomic number 57-71?
8. which element has a symbol that starts with a letter different from the first one in its name: aluminum, copper, gold, rhenium?
9. which element has the lowest atomic mass?
10. what is the first element with an atomic mass greater than 100?
11. what is the third halogen on the periodic table?
12. true or false: tin and antimony are in the same period?
13. what is the heaviest alkali metal?
14. what is the symbol for nitrogen?
15. which of the following is not a nonmetal: sulfur, oxygen, arsenic, nitrogen?
16. what is the name of the element with the symbol w?
17. which element has an atomic mass of 106.42?
18. astatine belongs to which element group: nonmetal, halogen, noble gas?
19. what is the element with the symbol ba?
20. name a letter never used in any element symbol?

Answer:

Let's solve these periodic table questions one by one:

Question 1: Which element is number 14 on the periodic table?

• Step 1: Recall that the atomic number (the number on the periodic table) identifies the element. Atomic number 14 corresponds to Silicon (Si).
• Answer: Silicon (Si)

Question 2: What is the element symbol for californium?

• Step 1: Recall the symbol for californium. Californium has the symbol Cf.
• Answer: Cf

Question 3: What is the element name with atomic symbol Mo?

• Step 1: Recall the element with symbol Mo. Mo stands for Molybdenum.
• Answer: Molybdenum

Question 4: To which element group does argon belong?

• Step 1: Recall the group of argon. Argon (Ar) is a noble gas, so it belongs to the noble gas group (Group 18).
• Answer: Noble gas (Group 18)

Question 5: Find three elements whose symbols don't seem to match their names.

• Step 1: Think of elements with symbols different from their common names. For example:
• Sodium (Na, from Latin "Natrium")
• Potassium (K, from Latin "Kalium")
• Iron (Fe, from Latin "Ferrum")
• Answer: Sodium (Na), Potassium (K), Iron (Fe) (other examples: Copper (Cu), Silver (Ag), Gold (Au), etc.)

Question 6: What is the atomic mass of carbon?

• Step 1: Recall the atomic mass of carbon. The atomic mass of carbon (C) is approximately 12.01 atomic mass units (amu).
• Answer: 12.01 amu

Question 7: What do you call the element series from atomic number 57 - 71?

• Step 1: Recall the series of elements with atomic numbers 57 - 71. These are the Lanthanides (Lanthanoid series).
• Answer: Lanthanides (Lanthanoid series)

Question 8: Which element has a symbol that starts with a letter different from the first one in its name: aluminum, copper, gold, rhenium?

• Step 1: Check each element:
• Aluminum: symbol Al (starts with A, matches)
• Copper: symbol Cu (starts with C? No, Cu. So this is a candidate)
• Gold: symbol Au (starts with G? No, Au. Candidate)
• Rhenium: symbol Re (starts with R, matches)
• So either Copper (Cu) or Gold (Au). Copper's symbol is Cu (from Latin "Cuprum"), Gold's is Au (from Latin "Aurum").
• Answer: Copper (Cu) or Gold (Au) (most likely Copper or Gold; let's confirm: Copper (Cu) – name starts with C, symbol starts with C? No, Cu. Gold (Au) – name starts with G, symbol starts with A. So Gold (Au) is another. But the question says "which element" – maybe Copper or Gold. Let's go with Copper (Cu) or Gold (Au). Let's check the options: aluminum (Al) matches, rhenium (Re) matches. So Copper (Cu) or Gold (Au). Let's pick Copper (Cu) or Gold (Au). Let's confirm: Copper's name is Copper, symbol Cu (doesn't start with C? Wait, Copper starts with C, symbol Cu starts with C? No, Cu is C and u. Wait, the first letter of the name: Copper is C, symbol is C (Cu starts with C). Wait, maybe I made a mistake. Wait, Aluminum: Al (A matches). Copper: Cu (C matches? Cu starts with C. Wait, no, Cu is C and u. The first letter of the name is C, symbol starts with C. Wait, Gold: Au (name starts with G, symbol starts with A). Ah, there we go. Gold (Au) – name starts with G, symbol starts with A. So Gold is the one. Rhenium: Re (R matches). So Gold (Au) is the element whose symbol starts with a letter different from the first one in its name (Gold starts with G, symbol Au starts with A).
• Answer: Gold (Au)

Question 9: Which element has the lowest atomic mass?

• Step 1: Recall the element with the lowest atomic mass. Hydrogen (H) has the lowest atomic mass (approximately 1.008 amu).
• Answer: Hydrogen (H)

Question 10: What is the first element with an atomic mass greater than 100?

• Step 1: Recall the atomic masses of elements. Let's list some:
• Ruthenium (Ru): atomic mass ~101.07
• So Ruthenium (Ru) has an atomic mass of approximately 101.07, which is greater than 100.
• Answer: Ruthenium (Ru)

Question 11: What is the third halogen on the periodic table?

• Step 1: Recall the halogens (Group 17). The halogens are:
• 1st: Fluorine (F)
• 2nd: Chlorine (Cl)
• 3rd: Bromine (Br)
• Answer: Bromine (Br)

Question 12: True or false: Tin and antimony are in the same period?

• Step 1: Recall the periods of tin (Sn) and antimony (Sb). Tin is in Period 5, Antimony is also in Period 5. So they are in the same period.
• Answer: True

Question 13: What is the heaviest alkali metal?

• Step 1: Recall the alkali metals (Group 1). The alkali metals are: Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), Francium (Fr). Francium is radioactive and rare, but Cesium (Cs) is the heaviest stable alkali metal. Francium is heavier but unstable. So the heaviest alkali metal is Francium (Fr) or Cesium (Cs). Since Francium is very rare, sometimes Cesium is considered the heaviest stable one. But strictly, Francium (Fr) has a higher atomic mass.
• Answer: Francium (Fr) (or Cesium (Cs) if considering stable)

Question 14: What is the symbol for Nitrogen?

• Step 1: Recall the symbol for Nitrogen. Nitrogen has the symbol N.
• Answer: N

Question 15: Which of the following is not a nonmetal: sulfur, oxygen, arsenic, nitrogen?

• Step 1: Recall the classification of elements. Sulfur (S), Oxygen (O), and Nitrogen (N) are nonmetals. Arsenic (As) is a metalloid (or sometimes considered a metal). So Arsenic is not a nonmetal.
• Answer: Arsenic (As)

Question 16: What is the name of the element with the symbol W?

• Step 1: Recall the element with symbol W. W stands for Tungsten (from Latin "Wolfram").
• Answer: Tungsten

Question 17: Which element has an atomic mass of 106.42?

• Step 1: Recall the atomic masses. Palladium (Pd) has an atomic mass of approximately 106.42.
• Answer: Palladium (Pd)

Question 18: Astatine belongs to which element group: nonmetal, halogen, noble gas?

• Step 1: Recall the group of Astatine (At). Astatine is a halogen (Group 17). Halogens are nonmetals, but the specific group is halogen.
• Answer: Halogen

Question 19: What is the element with the symbol Ba?

• Step 1: Recall the element with symbol Ba. Ba stands for Barium.
• Answer: Barium

Question 20: Name a letter never used in any element symbol?

• Step 1: Recall the element symbols. The letter "J" is never used in any element symbol.
• Answer: J (other possible: Q, but J is more commonly cited as never used)