Question

test v: write the correct atomic number in each block, then color them according to which group they belong. you may color each group the way you like (use the color guide below the table). 20 pts
the periodic table of elements
color guide:
group|alkali metals|alkaline earth metals|transition metals|lanthanide series|actinide series
group|post - transition metals|metalloids|non - metals|halogens|noble gases
test vi: provide which element is being described in each of the following statements.

1. this element is a symbol of status and wealth.
2. this element is used by surgeons in nose lifts and breast implants.
3. this element is used as a component of electric circuits in gadgets & appliances.
4. this element is released by plants as by - product of photosynthesis and is essential to human/animal respiration.
5. this element is essential in making table salt and soap.
6. this element is used in removing stains in clothes.
7. this metal is liquid at room temperature.
8. this metal is known to be the hardest element on the planet.
9. this element is an important composition for rechargeable batteries.
10. this element is a major component in coins/specie.

Explanation:

Step1: Recall element - related knowledge

We need to use our knowledge of elements and their properties to correct the wrong answers in Test VI.

Step2: Correct each answer

• 46: Gold (Au) is correct as it is a symbol of status and wealth.
• 47: Silicone is a compound, the element used in nose - lifts and breast implants is usually Silicon (Si).
• 48: Oxygen (O) is not used as a component of electric circuits. Copper (Cu) is a common element for electric circuits.
• 49: The element released by plants as a by - product of photosynthesis and essential for human/animal respiration is Oxygen (O), not Chlorine (Cl).
• 50: Sodium (Na) is correct as it is essential in making table salt (NaCl) and soap.
• 51: The element used in removing stains in clothes is usually Chlorine (Cl) in the form of bleach, not Mercury (Hg).
• 52: The metal that is liquid at room temperature is Mercury (Hg), not Carbon (C) which is a non - metal.
• 53: The hardest element on the planet is Carbon in the form of diamond, not Lithium (Li).
• 54: Lithium (Li) is an important composition for rechargeable batteries.
• 55: Nickel (Ni) is a major component in coins.

Answer:

1. Gold (Au)
2. Silicon (Si)
3. Copper (Cu)
4. Oxygen (O)
5. Sodium (Na)
6. Chlorine (Cl)
7. Mercury (Hg)
8. Carbon (C)
9. Lithium (Li)
10. Nickel (Ni)