chemistry of life part 1

Subatomic particle with a negative charge, has very little mass compared to other particles

• Proton

• Neutron

• Electron

• Alpha Particle

Subatomic particle with positive charge identifies the atom

• Proton

• Neutron

• Electron

• Alpha Particle

Atomic mass is equal to the number of protons plus _______.

• Protons

• Neutrons

• Electrons

• Alpha particles

The most reactive family of nonmetals has 7 valence electrons

• Alkali family

• Akaline Earth family

• Transition family

• Halogen family

Inert gases, non-reactive, belong to this family

• Alkali family

• Carbon family

• Noble gas family

• Halogen family

An atom with high ionization energy has 7 valence electrons, when this atom gains an electron, it becomes a __________ ion.

• Positive

• Negative

• Neutral

• Covalent

When two nonmetals share electrons equally due to their similar electronegativities, they form a(n) _________ bond

• Ionic

• Covalent

• Polar covalent

• Hydrogen

_________ give away electrons to become positive ions and __________ steal electrons to become negative ions.

• Metals, metals

• Nonmetals, nonmetals

• Nonmetals, metals

• Metals, nonmetals

A horizontal row of elements in the periodic table

• Molecule

• Period

• Family

• Atom

The smallest particle of an element.

• Element

• Molecule

• Atom

Tags

NGSS.MS-PS1-1