use the periodic table to fill in the missing information in the table below. name atomic symbol atomic…
use the periodic table to fill in the missing information in the table below. name atomic symbol atomic number radium 88 74 er
Answer
Explanation:
Step1: Find radium's symbol
Look up radium in periodic - table. Its symbol is Ra.
Step2: Find element with atomic number 74
Search for element with atomic number 74 in periodic - table. It is Tungsten, symbol W.
Step3: Find atomic number of Er
Look up Er (Erbium) in periodic - table. Its atomic number is 68.
Answer:
| Name | Atomic Symbol | Atomic Number |
|---|---|---|
| Radium | Ra | 88 |
| Tungsten | W | 74 |
| Erbium | Er | 68 |