Unit 3 Test Review: Atomic Structure, Periodic Table, etc.

Elements in the same period have the same number of ___

Which Halogen has more than 15 protons but fewerthan 30 protons?

This group is made of reactive metals with 2 valence electrons

Which element is in the same family as silver, but has fewer protons than Krypton?

This group is made of reactive nonmetals with 7 valence electrons

Rutherford's gold foil experiment discovered ______?

How many neutrons are in the nucleus of the Beryllium isotope with a mass of 9?

An atom has 15 protons, 16 neutrons, and 15 electrons.  What is its charge?

An atom has a mass of 23 and there are 12 neutrons in the nucleus.  What is its atomic number?

In this class, we primarily use the ____ model of the atom

An atom has a mass of 23 and there are 12 neutrons in the nucleus.  What element is it?

An atom has 15 protons, 16 neutrons, and 15 electrons.  What is the name of the element?

Elements in the same group have the same number of ___

______ is in the same group as Strontium

Hydrogen is grouped with the alkali metals because it is an inert nonmetal

How was Thomson's "plum pudding" model an advancement over the solid sphere model?

Positive subatomic particle found in the nucleus with a mass of 1 a.m.u.

What is 7.98 x 10⁶ in standard notation?

Elements that are dull and brittle but decent conductors are likely classified as

This group is made of inert nonmetals

An atom has 4 neutrons, 2 electrons, and a charge of +1. What is the mass of the element?

Negative subatomic particle found outside the nucleus with essentially no mass

This group is made of highly reactive metals with 1 valence electron

Elements that are dull, brittle, and poor conductors are likely classified as

What is 269,000,000 in scientific notation?

The horizontal rows on the periodic table are referred to as ______

_______________ determine an element's chemical properties, including reactivity

_____ are atoms with the same number of protons but different numbers of neutrons

Neutral subatomic particle found in the nucleus with a mass of 1 a.m.u.

____ is in the same period as Cesium

What is the mass number of the calcium isotope that has 21 neutrons?

The first energy level of an atom can hold ___ electrons

The number of protons in an atom is the atom's

An atom has 4 neutrons, 2 electrons, and acharge of +1. How many protons does it have?

An atom has 15 protons, 16 neutrons, and 15 electrons.  What is its mass?

What is 0.00045 in scientific notation?

What is 1.68 x 10^-4 in standard notation?

What two particles are added together to get an atom's mass?

An atom has 4 neutrons, 2 electrons, and a charge of +1. What is the name of the element?

The second energy level of an atom can hold ___ electrons

Elements that are shiny, malleable, and good conductors are likely classified as

The lightest elements in a group are at the ____ of the column

The vertical columns on the periodic table are referred to as ______

The mass of an atom is concentrated in the atom's ___, made up of protons and neutrons