Question

use the periodic table to answer the following questions.

1. mark watney was left behind on mars in the martian. he decided to make water and needed a catalyst. find the symbol ir. what is the name of this element?
2. you can use gold to do a lot of things. its even found in your smartphone. find the element gold. what is its symbol?
3. this element can both harm us and help us. it is one of the actinide series, and it has an atomic number of 92. what is it?
4. this element is used in matches and fertilizer. find the element with an atomic mass of 30.974. what is the name of this element?
5. this element has been an important part of time - keeping through its use in atomic clocks. its symbol is cs. what is the element?
6. this element can be used as a poison. find the element arsenic. what is the symbol for this element?
7. youve heard of smoke detectors. many homes also have a detector to measure this noble gas. find argon and go down three elements. what is the name and the symbol?
8. silver has a symbol that looks nothing like the name. find silver. what elements are above and below it?
9. did you know that us nickels contain more copper than nickel? how many protons are there in an atom of nickel?
10. this element is named after a pioneering researcher named marie curie. its atomic mass is 297. what is the symbol for this element?
11. how many element(s) are in the liquid state?

Explanation:

Step1: Refer to periodic table

Look up the symbol Ir in the periodic table.

Step2: Identify element name

From the periodic table, the element with symbol Ir is Iridium.

Step3: Refer to periodic table for gold

Find gold in the periodic table.

Step4: Identify symbol

The symbol for gold is Au.

Step5: Refer to periodic table for atomic number 92

Locate the element with atomic number 92 in the actinide series.

Step6: Identify element

The element is Uranium.

Step7: Refer to periodic table for atomic mass 30.974

Find the element with atomic mass 30.974.

Step8: Identify element name

The element is Phosphorus.

Step9: Refer to periodic table for symbol Cs

Locate the element with symbol Cs.

Step10: Identify element

The element is Cesium.

Step11: Refer to periodic table for Arsenic

Find Arsenic in the periodic table.

Step12: Identify symbol

The symbol for Arsenic is As.

Step13: Refer to periodic table for argon

Locate argon and move down three elements.

Step14: Identify element name and symbol

The element is Krypton (Kr).

Step15: Refer to periodic table for silver

Locate silver and check elements above and below.

Step16: Identify elements

Above is Copper (Cu), below is Gold (Au).

Step17: Refer to periodic table for nickel

Find nickel and check atomic number (protons = atomic number).

Step18: Identify number of protons

Nickel has 28 protons.

Step19: Refer to periodic table for element named after Marie Curie

Locate the element with atomic mass 297.

Step20: Identify symbol

The symbol is Cn (Copernicium, named in part related to Marie Curie's work in a broader scientific context as she was a pioneer in radioactivity; Copernicium's naming also has connections to scientific heritage).

Step21: Refer to periodic table for liquid - state elements

Count elements that are liquid at standard conditions.

Step22: Identify number

There are 2 (Bromine (Br) and Mercury (Hg)).

Answer:

1. Iridium
2. Au
3. Uranium
4. Phosphorus
5. Cesium
6. As
7. Krypton (Kr)
8. Above: Copper (Cu), Below: Gold (Au)
9. 28
10. Cn
11. 2