| rb metal or nonmetal | 1.32 | 0.8 | 7472 | 20 | 94 |
| is rb a metal nonmetal or metalloid | 1.58 | 0.3 | 3923 | 35 | 21 |
| rb element metal or nonmetal | 1.77 | 1 | 4799 | 28 | 45 |
| is rb a metal or nonmetals | 0.02 | 0.6 | 4991 | 26 | 77 |
| is rb an alkali metal | 1.14 | 0.2 | 740 | 21 | 10 |
| is rb2s metal or nonmetal | 1.62 | 0.9 | 3786 | 25 | 84 |
| is b a metal or nonmetal | 1.44 | 0.1 | 9784 | 24 | 25 |
| pb metal or nonmetal | 0.22 | 0.1 | 7046 | 20 | 34 |
| br metal or nonmetal | 1.16 | 1 | 9303 | 20 | 10 |
| is b a metal nonmetal or metalloid | 0.79 | 0.9 | 1935 | 34 | 6 |
| is b a nonmetal | 1.89 | 0.4 | 8229 | 15 | 32 |
| b and r metal products | 1.48 | 0.9 | 8709 | 22 | 19 |
| what does rb mean in steel | 0.07 | 0.1 | 7791 | 26 | 47 |
| r b metal structures | 0.03 | 0.5 | 4387 | 20 | 74 |
