Review 23/24: LT 1.1 - Atoms, Ions, & Isotopes

An atom that has 6 protons, 8 neutrons, and 6 electrons is -

• a neutral atom

• an ion.

• an isotope.

Tags

NGSS.MS-PS1-1

Atoms of the same element with a different number of electrons are called ___________.

• elements

• isotopes

• ions

• neutral

Atoms of the same element with a different number of neutrons are called _________.

• elements

• isotopes

• ions

• neutral

An ion with a positive charge has __________.

• the same number of protons and electrons.

• lost a proton.

• lost an electron.

• gained an electron.

When an atom loses an electron, it becomes a(n) _____________ ion.

• positive
• negative
• neutral
• polyatomic

How many electrons does the following ion have?

• 10

• 12

• 14

• 22

Tags

NGSS.MS-PS1-1

How many electrons does the following ion have?

• 3

• 7

• 10

• 14

Tags

NGSS.MS-PS1-1

Which is true about the following chlorine atom?

• 17 protons and 36 neutrons

• 17 protons and 19 electrons

• 17 protons and 19 neutrons

• 36 protons and 17 neutrons

Tags

NGSS.MS-PS1-1

Which is true of the following beryllium atom?

• 4 protons and 9 neutrons

• 5 neutrons and 4 electrons

• 9 protons and 4 neutrons

• 4 protons and 2 electrons

Tags

NGSS.MS-PS1-1

What do these isotopes of carbon all have in common?

• neutrons & mass number
• atomic number and neutrons
• atomic number and electrons
• protons, atomic number, and mass number