who am I Flashcards
What is the basic unit of matter?
Atom
Who am I? I am a subatomic particle with a positive charge.
Proton
Who am I? I am a subatomic particle with no charge.
Neutron
Who am I? I am a subatomic particle with a negative charge.
Electron
What is the center of an atom called?
Nucleus
True or False: Electrons are found in the nucleus of an atom.
False
What determines the atomic number of an element?
The number of protons in the nucleus
Fill in the blank: The periodic table is organized by increasing ______.
Atomic number
What are vertical columns in the periodic table called?
Groups or families
What are horizontal rows in the periodic table called?
Periods
True or False: Elements in the same group have similar chemical properties.
True
Who am I? I am an element that has 6 protons.
Carbon
What is the mass number of an atom?
The total number of protons and neutrons in the nucleus
What do you call atoms of the same element with different numbers of neutrons?
Isotopes
Who am I? I am an element that is a noble gas and is inert.
Neon
What is the term for the energy required to remove an electron from an atom?
Ionization energy
True or False: Metals are typically found on the right side of the periodic table.
False
Who am I? I am an element that is essential for life and has the atomic number 8.
Oxygen
What is the term for the ability of an atom to attract electrons in a chemical bond?
Electronegativity
Fill in the blank: The alkali metals are found in group ______ of the periodic table.
1
Who am I? I am the lightest element on the periodic table.
Hydrogen
What is a chemical bond formed by the sharing of electrons called?
Covalent bond
What is the name of the horizontal row that contains elements with similar properties that are not in the same group?
Period
True or False: The periodic table was first arranged by atomic mass.
True
What is the most abundant element in the universe?
Hydrogen
Who am I? I am a metalloid that is used in semiconductors.
Silicon
What do you call the elements with atomic numbers greater than 92?
Transuranium elements