Where are electrons of an atom found?

Some are in the nucleus and some in the electron cloud.

What is the mass number ?

the number of protons and neutrons

the number of protons and electrons

Electrons are___________

Extremely small even in comparison to protons.

Super Positive, like cheerleaders!

The atomic number tells you what?

both electrons and protons in an atom.

Which statement about the periodic table is true?

Elements in the same column share similar properties.

Elements in the same row share similar properties.

Elements on the left have a larger nucleus than elements on the right.

Elements at the top of each column have the highest atomic mass in that column.

Referring to the reference periodic table, what do the elements fluorine, chlorine, and bromine have in common?

All have the same number of valence electrons.

All are located in the same period.

All are halogens, so they are not very chemically active.

An atom of a particular element has 15 protons, 16 neutrons, and 15 electrons. What other atom would correspond to the same element on the periodic table?

15 protons, 16 neutrons, 15 electrons

14 protons, 16 neutrons, 15 electrons

16 protons, 16 neutrons, 15 electrons

17 protons, 16 neutrons, 15 electrons

A student makes inferences about the elements circled in columns 10 and 11 of the periodic table, as shown. Why are these metals preferred to make jewelry?

These metals are lustrous, malleable, and ductile.

These metals are rare and dull.

These metals are good conductors.

These metals are soft and poor conductors.

Examine the portion of the periodic table that contains neon, an unreactive gas in Group 18. Which element would have similar properties to neon, and why?

Ar; elements in the same family of the periodic table share the same characteristics.

Cl; elements in the same period of the periodic table share the same characteristics.

Fr; elements on opposite corners of the periodic table share the same characteristics.

Li; elements on opposite sides of the periodic table share the same characteristics.

What do carbon, phosphorous, and selenium have in common?

They are good electrical conductors.

They are malleable and very dense.

Which statement about the elements is true?

Oxygen and sulfur share similar properties.

Carbon and nitrogen share similar properties.

Carbon and silicon have the same number of electrons.

Oxygen and phosphorus have the same number of protons.

How can the outer shell of chlorine be described?

The outer shell has 7 valence electrons.

The outer shell has 0 valence electrons.

The outer shell has 2 valence electrons.

The outer shell has 8 valence electrons.

A student designs an animation to visualize how the particles in a substance change when heat is added. How can the teacher verify that the animation is accurate?

Adding heat creates the effect of increased spacing between particles.

Adding heat creates the effect of decreased particle size.

Adding heat creates the effect of decreased spacing between particles.

Adding heat creates the effect of increased particle size.

At which combination of pressure and temperature does carbon dioxide have the strongest intermolecular attractions? (Hint: Solids have the strongest intermolecular attractions)

pressure: 54 atm; temperature: -80°C

pressure: 67 atm; temperature: 28°C

pressure: 5 atm; temperature: 0°C

pressure: 1 atm; temperature: -62°C

The Periodic Table Review

Authored by TRACI HARTIGAN

Science

7th Grade

NGSS covered

Used 40+ times

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50 questions

Show all answers

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The positive particles of an atom are

electrons

positrons

neutrons

protons

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

the central region of an atom where its neutrons and protons are is its

nucleus

electron cloud

core

center

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

True or False? Neutrons have a negative charge

True

False

Tags

NGSS.HS-PS1-8

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is the atomic number for an element with three protons?

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What does the 1.00794 stand for?

Hydrogen

atomic number

atomic mass

atomic explosion

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is the number of protons that the element in this image contain?

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The first energy level can hold up to how many electrons?

Tags

NGSS.MS-PS1-1

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The Periodic Table Review

The positive particles of an atom are

the central region of an atom where its neutrons and protons are is its

True or False? Neutrons have a negative charge

What is the atomic number for an element with three protons?

What does the 1.00794 stand for?

What is the number of protons that the element in this image contain?

The first energy level can hold up to how many electrons?

Where are electrons of an atom found?

What is the atomic symbol for sodium?

If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?

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