1st Semester Exam 3

Match it! Select the correct answer from the pull down...Good luck!

Elements in groups 3 through 12 are called

The central core of the atom is called the

Which of the three subatomic particles are positive

Atoms of the same element with a different number of neutrons are called

elements arranged in vertical columns in the periodic table are called

the maximum number of electrons in the second energy level of an atom is

Which of the three subatomic particles are neutral

The number of protons in an atom is called