Atoms, periodic table, and bonding

All matter is made of 

• energy 
• atoms 
• air
• chemistry

Tags

NGSS.MS-PS1-1

The positive particles of an atom are 

• electrons 
• atoms
• neutrons 
• protons 

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NGSS.MS-PS1-1

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

• nucleus 
• electron cloud
• core 
• center 

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NGSS.MS-PS1-1

Neutrons are

• negative
• positive
• neutral
• cows

Electrons are

• negative and in the nucleus
• positive and at the edge of the atom
• not in an atom
• negative and at the edge of the atom

Tags

NGSS.MS-PS1-1

Most of the atom is filled with

• electrons
• empty space
• the nucleus
• protons

Tags

NGSS.MS-PS1-1

Who first found the neutrons?

• Dalton
• Chadwick
• Bohr
• Democritus

How many protons are in the element, Sodium, with an atomic number of 11?

• 23
• 11
• 13
• 14

Tags

NGSS.MS-PS1-1

How many electrons are in the element, Oxygen, with the atomic number of 8?

• 7
• 10
• 8
• 9

Tags

NGSS.MS-PS1-1

True or False? Isotopes are atoms of the same element that differ in mass number and number of neutrons

• True
• False