Science help!!!!!!!!!!!!!!!!!!!?

If two atoms have the same number of protons but different numbers of neutrons, they will have the same ____.

(1 point)half-life



mass number



atomic number



degree of stability





2. During beta-particle emission, a neutron splits into ____.

(1 point)a proton and an electron



two protons



two electrons



two neutrons





3. Which item best represents Dalton’s mental image of an atom?

(1 point)a cork



a candy bar with nuts



a marble



a balloon full of air





4. Which type of particle would NOT be deflected by a magnetic field?

(1 point)beta particle



alpha particle



proton



neutron





5. The nucleus is held together by ____.

(1 point)magnetic attraction



gravity



atomic glue



the strong nuclear force

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