All elements in the same group have similar chemical properties.

have similar chemical properties.

are in the same state at room temperature.

have the same boiling and freezing points.

Using the periodic table and your knowledge of atomic structure, Cobalt (Co) and nickel (Ni) have almost identical atomic mass numbers. Comparing the typical nickel and cobalt atoms, which statement best describes the atoms?

Both atoms will have the same number of protons.

Both atoms will have the same number of neutrons.

Atom A has an atomic number of 19 and mass number of 40. Atom B has an atomic number of 20 and a mass number of 40. Which of these is an accurate statement?

Atom A has one less proton and one more neutron than Atom B.

Atom A has more protons than Atom B.

Atom A has an extra nucleon compared to Atom B.

Atom A has one more proton and one more electron than Atom B.

An atom with an atomic number of 12 and a mass number of 25 can best be described by which of these?

An atom that contains 12 protons and 13 neutrons.

An atom that contains 13 protons and 12 neutrons.

An atom that contains 12 protons and 25 neutrons.

An atom that contains 25 protons and 12 neutrons.

An atom with an atomic number of 13 and a mass number of 26 can best be described by which of these?

An atom that contains 13 protons and 13 neutrons.

An atom that contains 14 protons and 12 neutrons.

An atom that contains 13 protons and 26 neutrons.

An atom that contains 26 protons and 13 neutrons.

All the elements of a family in the periodic table have what feature in common?

They all have similar chemical properties.

They all have the same number of protons in the nucleus.

They are all located in the same horizontal row or period.

They all have the same number of electrons in the electron cloud.

Which statement about atomic structure is incorrect ?

Protons and electrons have the same mass.

Protons are located in the nucleus.

Protons and electrons have opposite charges.

Neutral atoms contain the same number of protons and electrons.

Consider the elements in this family (group) of the periodic table. Because they are in the same family, what can you predict about these elements?

They are chemically reactive in a similar way.

They are all about the same mass.

The size of the atom decreases as you go down the column.

The elements change from metals to nonmetals as go down the column.

Choose all of the answers that are correct when describing this atom. (Choose 2)

The atomic mass of this atom is 35 amu.

The atomic mass of this atom is 69 amu.

Germanium, element 32 on the Periodic Table, is shown here. If a proton is added to the nucleus of germanium, what outcome(s) would occur? Select both that apply.

The atom would become arsenic and have different properties.

The atom would increase in mass and have different elemental properties.

The atom would increase in mass but would remain germanium.

The atom would remain germanium, but it would have a positive charge.

The atom would expel a neutron to maintain a constant mass and chemical properties.

The periodic table is an arrangement of the chemical elements, ordered by atomic number, into families, and by doing so illustrates the periodic properties of the elements. Considering the organization of the periodic table, which element would make a good conductor of electricity ? What properties of that element would support this choice?

Copper, Cu. A solid metal that is ductile and malleable.

Calcium, Ca. A very reactive, commonly found Earth metal.

Silicon, Si. A metalloid that acts as either a metal or a non-metal.

Mercury, Hg. A dense, liquid metal that moves easily with changes in temperature.

Consider this row in the periodic table of elements. As we move from left to right, across the row, the elements

change from metals to nonmetals.

change from nonmetals to metals.

start as gases but end as solids.

show a decrease in atomic mass number.

Atoms and the Periodic Table

Authored by Talenthea Hollis

Physics

8th Grade

NGSS covered

Used 1+ times

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34 questions

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MULTIPLE SELECT QUESTION

45 sec • 1 pt

What is particle number 1?

Proton

Neutron

Electron

Nucleus

Electron Cloud

Tags

NGSS.MS-PS1-1

MULTIPLE SELECT QUESTION

45 sec • 1 pt

What is particle number 2?

Proton

Neutron

Electron

Nucleus

Electron Cloud

Tags

NGSS.MS-PS1-1

MULTIPLE SELECT QUESTION

45 sec • 1 pt

What is particle number 3?

Proton

Neutron

Electron

Nucleus

Electron Cloud

Tags

NGSS.MS-PS1-1

MULTIPLE SELECT QUESTION

45 sec • 1 pt

What is particle number 4?

Proton

Neutron

Electron

Nucleus

Electron Cloud

Tags

NGSS.MS-PS1-1

MULTIPLE SELECT QUESTION

45 sec • 1 pt

What is particle number 5?

Proton

Neutron

Electron

Nucleus

Electron Cloud

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

All matter is made up of tiny particles called

atoms.

protons.

neutrons.

electrons.

nucleus.

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Atoms are made up of three subatomic particles known as ___ (+), _ (0), and _____ (-).

protons

electrons

neutrons

protons

neutrons

electrons

neutrons

electrons

protons

electrons

protons

neutrons

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