Use the periodic table to match each of the following element symbols to its name, atomic mass, or atomic number.
term definition
sb a) 32.06 u (atomic mass)
s b) antimony
si c) 14 (atomic number)

Sb is the atomic symbol of antimony

S is the atomic symbol of sulfur

Si is the atomic symbol of silicon

The atomic number of Sb is 51

The atomic number of S is 16

The atomic number of Si is 14

The atomic mass of Sb is 121.76

The atomic mass of S is 32.06

The atomic mass of Si is 28.08

Thus the correct match will be

Sb B (antimony)

SA(32.06) (atomic mass)

SiC(14) (atomic number)

23.5

23.5

47.0

assuming that your periodic table has eighteen columns, you should highlight   the four elements in the third column from the left of the table.

neutral atoms of elements after calcium contain d electrons. the energy of d orbitals of a particular main shell lies between the energy of the s and p orbitals of the next main shell. for example, electrons in the have energy higher than those in the orbital while lower than those of the orbital.

by the aufbau principle, electrons fill orbitals one at a time, starting from those of the lowest energy. the orbital is therefore filled right after orbitals and before orbitals.  

potassium has electron configuration and calcium . the s orbital of a main shell holds a maximum of two electrons. the next element would thus have the electron configuration and satisfy the requirements.

a neutral atom of the element contains three electrons on top of the most recent noble gas element. it should thus be placed in the third column of the periodic table. both scandium and yttrium would satisfy the conditions. an aufbau diagram indicates that the 4f orbital is filled before the 5d. however, it appears that exceptions exists for both lanthanum and actinium. neutral atoms of the two d-block elements also demonstrate the and should be highlighted as well.