Atomic Structure CFA #2, 23-24, gk

The first energy level is _____ the nucleus

• a distance away from

• perpendicular to

• attached to

• inside

The overall charge of any atom is always

• neutral

• positive

• negative

• dependent on the number of protons

The overall charge of all atoms is neutral because atoms have equal numbers of

• protons and neutrons

• neutrons and electrons

• protons and electrons

The force that keeps the entire atom held together.

• gravitational force

• electromagnetic force

• weak nuclear force

• automotive force

The mutual attraction of the positive nucleus and the negative electrons is caused by the

• strong nuclear force

• gravitational force

• electromagnetic force

• automotive force

The charge of the nucleus of all atoms is positive because of the

• positive charges of the neutrons

• positive charges of the protons

• neutral charges of the electrons

The nucleus of any atom has a _______ charge because of the charge of the protons.

• negative

• neutral

• no

• positive

This subatomic particle's function is to help hold the nucleus together.

• neutrons

• electrons

• protons

• neutricals

The unit of mass used for subatomic particles that is based on carbon.

• oz

• lb

• amu

• elf

The atomic mass rounded off minus the atomic number will give the number of ____ of most atoms of an element.

• neutrons

• protons

• electrons

• positrons