Atoms and the Periodic Table Flashcard

Front

What does the term 'atom' stem from?

Back

Greek word atomos

Front

How many atoms are there in the human body approximately? Options: 7 with 20 zeros after it, 7 with 24 zeros after it, 7 with 30 zeros after it, 7 with 27 zeros after it

Back

7 with 27 zeros after it

Front

What is the centre of the atom called?

Back

Nucleus

Front

Which subatomic particles are found within the nucleus of an atom?

Back

Protons and neutrons

Front

What are electrons attracted to in an atom?

Back

Protons

Front

What determines the unique structure of an element on the periodic table? Options: Number of electrons, Atomic mass, Atomic number, Number of neutrons

Back

Atomic number

Front

How many protons, neutrons, and electrons does a hydrogen atom have?

Back

1 proton, 0 neutrons, 1 electron

Front

What is the charge of protons and neutrons?

Back

Protons are positively charged, neutrons are not charged

Front

What is the reason for the gaps in the periodic table?

Back

Missing elements are rare or unstable

Front

What are scientists exploring in the quest to complete the periodic table? Options: Properties of missing elements, Properties of synthetic elements, Properties of radioactive elements, Properties of known elements

Back

Properties of missing elements