Atoms and Periodic Table Honors Mini Review

Which of the following elements below would have similar chemical properties to silicon, element 14?

• carbon (C)

• aluminum (Al)

• phosphorus (P)

• argon (Ar)

Which particles account for nearly all of the mass of an atom when added together?

• protons and electrons

• protons and nuetrons

• neutrons and electrons

• protons, neutrons and electrons

Tags

NGSS.MS-PS1-1

What type of atom has an equal number of protons and electrons?

• ion

• neutral atom

• isotope

• all atoms have an equal number of protons and electrons

Two atoms both have 6 protons, but one atom has 6 neutrons and the other has 7 neutrons. How are these atoms related?

• They are isotopes of the same element

• They are ions of the same element

• They are atoms of different elements

• They are both radioactive

A neutral atom is best described as having....

• more protons than neutrons

• more electrons than protons

• an equal number of protons and electrons

• an equal number of protons and neutrons

The atomic number of an atom is always equal to the total number of-

• Neutrons in the nucleus

• Protons in the nucleus

• Neutrons plus protons in the atom

• Protons plus electrons in the atom

How do you calculate the number of neutrons?

• Mass number- atomic number

• mass number/atomic number

• mass number + atomic number

• mass number x atomic number

In what section would Noble Gases be found?

• white on the upper right
• yellow on the left
• blue under the stair case
• red on the right

Metalloids can be described as...

• same as nonmetals
• bad conductors
• characteristics of metals and nonmetals
• same as metals

The horizontal rows on the periodic table are called

• groups

• families

• periods

• atomic numbers